Seven Great Demon Lords

The Seven Great Demon Lords (七大魔王), also known as the "7 Demon Lords", "Seven Deadly Digimon", or "Mao Digimon", are a group of Demon Lord Digimon who each represent one of the. They are primarily based on the "Princes of Hell" in 's "", also called the "Seven s" in modern occultism. Digimon replaces two of Binsfeld's princes with other demons popular in Judeo-Christian mythology, and several characteristics of the members are drawn from John Milton's ' and the anonymous grimoires ' and . There are also two "Super Demon Lords" who are closely related to the group.

The Seven Great Demon Lords are the chief nobility of the Dark Area and each member has the right to command legions of the "Nightmare Soldiers", if they so wish. They are also able to subvert the cycle of reincarnation presided over by Anubismon—instead of having the chance to be reborn, the data of their victims becomes their own flesh and blood. Despite their might, certain other demonic Digimon, such as GranDracmon, are powerful enough to stand outside their authority. Some other Demon Lords such as MaloMyotismon are rumored to be part of this group, but are not members. The group has a natural rivalry with the Royal Knights.

Members
Some of the species that are members of the Seven Great Demon Lords have also appeared as characters in other media, but are not members of the group.

Super Demon Lords
Both of the Super Demon Lords (超魔王) wear the Crowns of the Seven Deadly Sins, are derived from the, and digivolve from the Seven Great Demon Lords.

Crests
Each of the Seven Great Demon Lords is associated with a corresponding "Crest" (紋章), and this association becomes more prominent when they undergo X-Evolution, as their new forms incorporate their crest in some way into their design.

Each crest is displayed in one of the seven colors of the, and depicts a of one of the "", a group of mythological entities who, under God, ruled over the 196 provinces of Heaven and presided over the natural world for 490 years each. Each Olympian Spirit is associated with a heavenly body, also depicted on the Crest.

Within the space between the two concentric circles is text stating a designated Level (this is "666" for all the crests, a reference to the "" mentioned in the Book of Revelation), System (the demon that traditionally represents the Demon Lord's respective sin), and Code (the Demon Lord's respective sin). At the bottom of the inner circle is text which specifies a caution for a Purgatory Level ranging between 1 and 7, corresponding to the arrangement of Purgatory within Dante Alighieri's .

The structure of the text is in the following format:


 * LEVEL:___ SYSTEM:___ CODE:___ (repeated twice)
 * CAUTION! PURGATORY LEVEL ___

Crown of the Seven Deadly Sins
The Crown of the Seven Deadly Sins (７つの大罪の冠) is composed of all seven Crests arranged in an array and is worn by both Super Demon Lords, Lucemon Shadowlord Mode and Ogudomon.

Code Key
The Code Keys (コードキー) are mystical cards which appear in Digimon World Data Squad. Each of the seven cards is can be used to transform a child exhibiting a deadly sin into the Mao matching the Crest depicted on the card. The DigiCode on the back of each Code Key reads and, while the front of the card is unique for each code key and is structured in the following format, also written in DigiCode:
 * DIGIMON NAME
 * (CREST)
 * DIGIMON NAME:SIN
 * SPECIAL MOVE 1
 * SPECIAL MOVE 2
 * SPECIAL MOVE 3

"LUCEMON FM" and "DAEMON" are used for Lucemon and Creepymon, respectively.

Gate of Deadly Sins
The Gate of Deadly Sins (大罪の門) is engraved with seals depicting the Crests of the Seven Deadly Sins.

Towers of the Seven Deadly Sins
The Towers of the Seven Deadly Sins (七大罪の塔) are mysterious buildings.

In Digimon Collectors they begin appearing across the and attract Digimon exhibiting their respective sin, as well as the, who is sent to investigate them by the. Although the protagonist defeats the Demon Lords lurking within each tower, this only serves to bring about the manifestation of 's tower, as well as the Super Demon Lord itself.

In Digimon World: Next Order, the Seven Deadly Digimon each create a tower out of boredom after having agreed not to fight each other, but the towers are soon destroyed by the Malevolent Fist.

Digimon Data Squad
Long ago, the Demon Lords almost brought ruin to the Digital World. However, they were stopped and reverted to Digi-Egg form, then sealed away to be forgotten.

Belphemon
Some time before Marcus's induction into DATS, Akihiro Kurata discovered a temple which hid the sealed Digi-Egg of the Demon Lord of Sloth, Belphemon. He retrieved the egg and it eventually hatched into Belphemon Sleep Mode, after which Kurata began a campaign to awaken the Demon Lord by collecting "Digimon life energy", which would allow him to conquer both the human and digital worlds. Using his army of Gizumon to permanently murder many different Digimon, Kurata eventually collects the required energy after slaying the massive ElDradimon. Believing he has successfully brought Thomas H. Norstein to his cause, Kurata uses the "Digimon control device" Thomas had made for him to command Belphemon. However, during Belphemon's attack, Thomas double-crosses Kurata and destroys the control device, forcing Kurata to reassert control by transforming himself into data and merging with Belphemon, which causes it to transform into its Rage Mode.

Soon after, Thomas comes to join the fight, with Marcus Damon on his way as well. faces off against Belphemon only to be stomped on. He might have been finished if hadn't seized Belphemon's arm. Belphemon Rage Mode blocks the attacks shot by Rosemon and defeats, who reverts back to. Through Keenan Crier's rage, Falcomon double warp digivolves to and attacks Belphemon but is unable to do anything more than anger him. Belphemon launches an attack at Marcus and Thomas, which Ravemon blocks. Due to his increasing anger, Kurata loses control to Belphemon's true conciousness as he is in "Rage Mode". Unlike Kurata, Belphemon's only goal is destruction. Marcus's Digi-Egg hatches and digivolves from to.

Once Agumon digivolves into, Kurata's face emerges from Belphemon's chest. He then drains electricity from the city to cause Belphemon Rage Mode to grow and swallow a number of space oscillation devices to give it the power to tear rifts between both worlds, threatening to bring both worlds crashing together. He defeats and, who revert back to the two. ShineGreymon digivolves into and destroys Belphemon Rage Mode, with help from Marcus' D.N.A. going straight through Belphemon Rage Mode's chest, where Kurata's face is.

Digimon World Data Squad
The "Mao Digimon" are created when one of the Code Keys of the Seven Deadly Sins is merged with a person who exhibited the respective sin. However, they can be destroyed with enough hard work before they can fully regain their strength.

During a series of Digimon attacks, earthquakes, and disappearances, the Mao Digimon reveal themselves with an attack from Creepymon. Five of them, Belphemon, Barbamon, Lilithmon, Beelzemon, and Leviamon, are quickly defeated, releasing their respective Code Keys and the children they were each made from. Lilithmon is revealed to be created from Yuma Kagura, the little sister of one of DATS's researchers, Tsukasa Kagura. Meanwhile, a private investigator named Kosaburo Katsura and his Digimon attempt to steal the Code Keys.

After Leviamon is defeated, Kagura appears and reveals that he is behind both Kosaburo and the Mao Digimon, as he wants to release in order to become the strongest Tamer. He had his henchmen DemiDevimon kidnap the children and transform them into the Mao Digimon, while Creepymon would take the Code Keys of the defeated Mao Digimon to apply to Lucemon's seal.

After a defeat in the Doomsday Forest, Creepymon attack DATS Headquarters but is defeated again. A young girl named Manami Nitta runs to the dying Creepymon, who reverts to his human form and is revealed to be her father, a lost DATS member named Masaki Nitta. Kagura had told Creepymon that the only way to return home to the Real World was to retrieve the Code Keys and release the seal on Lucemon. Masaki reveals that Kagura already has the Code Key of Wrath, but as Thomas realizes that Creepymon's attack was merely a distraction to give Kagura time to release the seal, Masaki begins to dissipate, as he had spent too much time as Creepymon and was no longer anything more than mere data.

Kagura finally releases Lucemon, who fights DATS but is defeated. However, its defeat proves to be only temporary, as Lucemon quickly revives himself and transforms Kagura into the Code Key of Pride, then absorbs him. While the first six Code Keys removed the seal on Lucemon, and the Digisoul charge awakened him, the Code Key of Pride allows him to leave the Dark Area entirely. Although Lucemon is defeated once again, he transforms into the terrifying "Cho-Mao". Despite this form's overwhelming power, DATS manages to defeat him as well, freeing an ashamed and repentant Kagura and ending the Mao Digimon crisis. However, the cards still exist and the data of the Mao digimon has not yet been deleted.

After each Mao Digimon is defeated, a new incarnation of its trait appears at the location of its demise. The DATS team tracks each new incarnation down, and the Mao bestow their power onto the member of the team that best exemplifies their trait, generally after a fight. This allows the team member's Digimon to take the Mao Digimon's form through Digivolution. Agumon gains Belphemon's and Creepymon's, Lalamon gains Lucemon's, Gaomon gains Barbamon's, Falcomon obtains Leviamon's power, Biyomon gains Beelzemon's, and Renamon gains Lilithmon's.

Lucemon
As the Cho-Mao (超魔王), leader of all the other Mao Digimon, it takes all six of the other Code Keys to release Lucemon from his seal in the Ice Caverns. He used his dark powers to manipulate Tsukasa Kagura's bitterness towards Thomas to have him begin a quest to retrieve the Code Keys from his fellow Mao Digimon's data to free him from imprisonment, all the while making him think he was in charge of the evil Digimon working for him. Upon being unsealed and given a DigiSoul Charge from Kagura, Lucemon proceeded to fight the DATS team, but lost. Seeing that he needed to gain more power from the Dark Area, Lucemon betrays Kagura by turning him into the Code Key of Pride and absorbing him to gain freedom from the Digital World. Confronting the DATS team again, Lucemon digivolves to the Demon Lord form, the final boss, only to be defeated once more.

Attacks
 * As Lucemon Chaos Mode
 * Paradise Lost : Causes a powerful explosion of red energy.
 * Dead or Alive : Deals damage based on a clock's roullete result.
 * Deadly Roll
 * Terrible Dance: Performs a spin kick.
 * As Demon Lord
 * Dimension Slasher: Slashes the enemy and turns the Digimon into Digi-Eggs.
 * Purgetorial Flame: Summons the seven crests of the Mao digimon, sending out a powerful blast of fire.

Leviamon


Leviamon is the boss of the Sea Precipice Jerapilus and is formed from an envious child and the Code Key of Envy. Upon his defeat, he wondered how the hearts of the DATS operatives could be so pure.

Attacks
 * Rostrum
 * Cauda
 * Anima

Creepymon


Creepymon first appears and defeats Marcus Damon and at Walter Island, after the pair defeat Tylomon. While overlooking the sealed Lucemon, it meets Tsukasa Kagura, who promises to give it a portal to the Real World. It later encounters the DATS team in Doomsday Forest Ruins, where they beat it. However, Kagura keeps his end of the bargain and by using five of the Code Keys, breaks down the barrier between the two worlds enough for it and other dangerous Digimon to leave. In the real world, it tries making contact with former DATS member Misaki Nitta's daughter, who sees that he is within the evil Digimon. However, a final battle between Creepymon and the DATS team frees Nitta from him, but at a heavy cost. Not only did he give the "Code Key of Wrath" to Kagura, he is not able to return to normal because he was Creepymon for an extended point of time, remaining as data fragments in the Digital World.

Attacks
 * Flame Inferno : A powerful blast of fire.
 * Chaos Flare : A more powerful blast of fire.
 * Double Dust: Slams fists over target's head.

Belphemon


Belphemon is the boss of the Rage Caverns and was created from a missing boy and a "Code Key of Sloth" card. After the DATS team defeat him, the boy and card return to normal. Belphemon was responsible for seismic activity that the DATS team felt during their search for him.

Attacks
 * Lampranthus
 * Gift of Darkness : Summons a damaging storm of darkness.
 * Dark Horn: Charges head-first into a target.

Barbamon


Barbamon is the boss of the Mirage Museum and was created from a greedy girl and a "Code Key of Greed" card. After the DATS team defeat him, the girl and card return to normal.

Attacks
 * Pandemonium Lost A swipe of Barbamon's staff.
 * Death Lure : Instant death spell used on single target.
 * Hell's Flame : Blast of fire from Barbamon's staff.

Beelzemon


Beelzemon is the boss of the Digital Dungeon. He is made from the Code Key of Gluttony and a gluttonous child. Upon his defeat, he admits the DATS team is "cool".

Attacks
 * Double Impact Two gunshots.
 * Darkness Claw : Single claw swip.
 * Heart Break Shot A powerful, single gunshot.

Lilithmon


Lilithmon is the boss of Livilus Island. Lilithmon is created from Yuma Kagura and the "Code Key of Lust" card. Befitting the sin that created her, Lillithmon seeks to flirt with men. She insults and then fights Yoshino, but after the DATS team defeats her, Yuma and the card return to normal.

Attacks
 * Darkness Love: Uses a lustful aura to disrupt the opponent's mind.
 * Phantom Pain: Curses the opponent with a dark breath.
 * Razor Nails (Nazar Nail): Rots the opponent by attacking with demon claws.
 * Evil Sigh: Blows an evil sigh upon the opponent.

Digimon World DS
After the protagonist becomes the Tamer King and returns to their DigiFarm, the 7 Great Demon Lords send a challenge to the King, demanding a series of duels and threatening to destroy the Digital World if the King loses or tells anyone about the fight. The Tamer King is challenged to battle by each of the seven in turn, with each victory unlocking a new area. After all seven are destroyed, Beelzemon remanifests and offers to fight alongside the Tamer King.

Daemon
Daemon is the first opponent of the Tamer King. He confidently invites them to the Hard Mountains, but is defeated. He is remanifested by Belphemon to ambush the Tamer King at Destroyed Belt, but is defeated once more.

Beelzemon
Beelzemon is the second opponent of the Tamer King. He invites them to the Sky Palace, expecting a weak and cowardly human, but is defeated. He is remanifested by Belphemon to ambush the Tamer King at Destroyed Belt, but is defeated once more. He realizes that humans are not as meek as he assumed and remanifests after Belphemon's defeat, choosing to fight alongside the Tamer King.

Barbamon
Barbamon is the third opponent of the Tamer King. He invites them to Lava River, but is defeated. He is remanifested by Belphemon to ambush the Tamer King at Destroyed Belt, but is defeated once more.

Lilithmon
Lilithmon is the fourth opponent of the Tamer King. She flirtatiously invites them to the Tropical Isles, but is defeated, infuriating her. She is remanifested by Belphemon to ambush the Tamer King at Destroyed Belt, but is defeated once more.

Leviamon
Leviamon is the fifth opponent of the Tamer King. He invites them to Undersea Drive, but is defeated. He is remanifested by Belphemon to ambush the Tamer King at Destroyed Belt, but is defeated once more.

Lucemon Chaos Mode
Lucemon Chaos Mode is the sixth opponent of the Tamer King. He imperiously invites them to Core field, contemptuous of the weaker Demon Lords' failures, but is defeated. He is remanifested by Belphemon to ambush the Tamer King at Destroyed Belt, but is defeated once more.

Belphemon Rage Mode
Belphemon is the final opponent of the Tamer King. After Lucemon's defeat, Belphemon invites the Tamer King to Destroyed Belt. At the same time, DATS receives a tip about his location and tries to capture him there, but are soundly repelled. When the Tamer King arrives, Belphemon reveals his scheme to remanifest the other Demon Lords and ambush them as a group, but the King triumphs in spite of this.

Barbamon
Barbamon is the Demon Lord who has taken over the Host Computer in the System World, where he now makes his base. He aims to take over the Digital World by obtaining all the for the future of Digimon,, already having the Dark DigiMemory. For that purpose, he creates the Commandments and recruits Shou Kahara and, who have the Bird DigiMemory.

As a member of the Seven Great Demon Lords, he forces himself into System World and confronts Yggdrasill on the policies of "Art" Digimon, Digimon born with Tamers. Upon deciding that revolution is in order, Barbamon merges with Yggdrasill and became the host computer itself. He fights Tsurugi Tatsuno but is killed when destroys him. His last act is to give his gathered DigiMemories to NEO, giving him consciousness.

Barbamon appears one last time when the other DigiMemory holders restrain NEO; his Dark DigiMemory imprinted with his consciousness gives NEO the ability to attack Tsurugi and Yuu Inui, only to have his own Commandments turn on him.

Digimon World Re:Digitize: Decode
Mirei Mikagura states that due to Sayo killing the Seven Deadly Digimon of her world, the Seven Deadly Digimon of every world, including Mirei's, become stronger. They then become stronger once more when Aiba kills the Cyber Sleuth Deadly Digimon.

Barbamon


Later, Aiba travels to the Re:Digitize world in search of an UlforceVeedramon, which leads Aiba to find Rina Shinomiya. After greeting them, Rina tells them that she will help so long as they help her regain Veevee's lost power, which was stolen by Barbamon. After finding Barbamon, she manages to kick the Deadly Digimon in the face before engaging him in battle, annoying Veevee with her recklessness. After defeating Barbamon, Veevee warp-digivolves to UlforceVeedramon and agrees to help them.

Laylamon
Laylamon is aware of 's true plot, but she is not interested in it as she has her own plans to rule over the Digital World. Consequently, she is put as a decoy by him in the 60F of the DigiTower.

Digimon Story: Cyber Sleuth
The Seven Deadly Digimon are Digimon who stand above all demons. They are crowned the Highest of the High and have evil within them at their creation. They exist in all parallel worlds simultaneously, which is also a defense mechanism. They are a natural, primal factor of the world.

In another universe, the Digimon Tamer Sayo of the Night Claw organization killed the Seven of her world and thus increased the power of the Seven Deadly Digimon in every other. In punishment, she lost her partner. To regain her partner, she must kill the Seven of Aiba's world. Without her partner, however, she lacks the strength, so Mirei Mikagura contracts Aiba to kill the Seven and explains the backstory to them. Aiba accepts, and though Sayo disagrees with having someone else fight for her, she decides to trust them. Mirei alerts Aiba to the location of each of the Seven, and they kill each of them in turn, obtaining one of the Evidence of Sin each time as their spoils. Each one is inherent to one of the Seven and is also proof of Dianamon's punishment, so gathering them all will free her. After killing all of the Seven, Aiba hands over the Evidences of Sin to Mirei, who laughs and is excited at the prospect of allowing new values to arise.

In a ritual, Mirei returns Dianamon returns to Sayo. Normally, Aiba should be subject to the same fate as Sayo for killing the Seven, but Mirei intervenes. She uses the Evidences of Sin to spawn what she calls the ultimate Digimon that shares the new values with the gathered Evidences: Monzaemon. Sayo resolves to fight, and Aiba and Sayo take down Monzaemon. Though Mirei performed the experiment to introduce something new into the world, Mirei instead finds her own eyes opening and ends up pleased with the results of her experiment. With Aiba and Sayo's journey together complete, Sayo and Dianamon return home.

Lilithmon
When Beelzemon puts up the request on the BBS for Keisuke Amasawa, Lilithmon comments that the situation is interesting and that she will "maybe" go take a look. She is later killed by Aiba, who kills all members of the group to free.

Digimon World: Next Order
The Seven Deadly Digimon lived in the Dark Area, the group controlling it. The seven of them forged a pact of non aggression, as fighting against each other was considered pointless and would watch each other, to make sure none of them broke the pact by raising an army of Nightmare Soldiers. They each built a tower out of boredom, however one day, all seven towers were absorbed by darkness - leaving them to flee into the Dimensional Sea, however the damage was done and when finding themselves in the Next Order universe, all went into a deep slumber and were awaken due to the power of reincarnation. After the events of and  turning on the  due to a dark energy possessing them, Lucemon FM and Beelzemon confirm it was the same energy that had destroyed their Dark Area. This dark energy is later confirms itself to be the "Malevolent Fist", which then forces Piedmon and Myotismon to DNA Digivolve into, leading the Malevolent Fist to be responsible for its own birth. After the Hero defeats Boltboutamon - Beelzemon, Lucemon, Shoma Tsuzuki and Noir charge in, and Boltboutamon remembers the Deadly Digimon. Noir, Lucemon and Beelzemon attack BoltBoutamon, however he proves to be too powerful - to the shock of everyone. Accepting their deaths, everyone is shocked when BoltBoutamon leaves through a dark portal, wanting to have another "party" with them all again one day. The Malevolent Fist then clones the body it created and leaves, returning Piedmon and Myotismon to normal.

Beelzemon
Beelzemon is one of the Seven Deadly Digimon.

Despite being one of the Seven Deadly Digimon, Beelzemon doesn't like being put in a group, and acts separately from the others. After or Shiki defeats, Beelzemon will challenge them to a fight when approached. After being defeated, he'll go to Floatia's Dimensional District, where he'll warn Takuto or Shiki about the other Seven Deadly Digimon.

Belphemon
Belphemon Sleep Mode is one of the Seven Deadly Digimon.

At some point, Belphemon starts to sleep in the Concealed Gorge. detects its power, but fears to be corrupted if they get too close, and asks or Shiki to defeat Blephemon. After being defeated, Belphemon goes to Floatia's Dimensional District and wonders what it is planning to do.

Barbamon, Creepymon and Leviamon
Barbamon, Creepymon and Leviamon are three members of the Seven Deadly Digimon and are found in the Celeb Blue Room in the Bony Resort. Having heard about the saving the world, they arrive specifically to find the Hero, wanting to recruit them into the group because joining the group is the exact same thing they've been doing... except backwards - though Leviamon is only concerned with literally eating the Hero. They also want to recruit the Hero, because despite calling themselves the "Seven Deadly Digimon", there are only three of them - meaning they don't act alongside the other members of the group. After being defeated, the three decide to join the City because according to them, whether the Hero joins the group, or the group joins them in the City, it's the exact same thing. The three join the Dimensional District, though worries since Leviamon literally wants to eat the District.

Lucemon
Lucemon is a member of the Seven Deadly Digimon and is found in the Frozen Divider in the Frost Cathedral and claims to have been watching the for their entire journey in the Digital World and asks if the Hero knows the difference between good and evil, and assumes the Hero would assume Lucemon is good because of his appearance as an angel, then warp digivolves into Lucemon Falldown Mode and states that he has transcended the concepts of both good and evil and fights the Hero so they can learn the difference between good and evil. After being defeated, Lucemon states that the Hero is good, but knows the Hero doubts him and promises to turn everything they believe in upside down the next time they meet. Lucemon is later found even further into the Frost Cathedral and states that yet again, he had been watching everything the Hero had done and was only reaffirmed that the Hero is a force of good and that they arrive to their conclusions through battle. Lucemon then decides that the winners of battles are good, and the losers are evil and then digivolves into the embodying of evil itself, Lucemon Satan Mode, and fights the Hero because Lucemon wants to shed the tag of being evil, so clearly winning against the Hero will mean Lucemon is now good, whilst losing means it will just add another sin to his history. After being defeated, Lucemon instead decides that being good is to mix a noble heart with wicked thoughts and to move forward even with clutching pain and anguish in your heart, then decides to continue watching over the Hero and asks to see their power of good in person again one day, joining the City in the Digital Dimension.

Lilithmon


Lilithmon is a member of the Seven Deadly Digimon and is found in the Logic Volcano and was looking for the due to them saving the world but is disappointed in what she finds, with the Hero being a "scrawny runt", meaning they will be unable to "satisfy her" and that she will battle them to "pass the time". Lilthmon then gets angry due to the Hero not understanding her and demands a battle. After losing, Lilithmon is happy, stating it had been a long time she had had such an enjoyable battle, since she usually just fights the other Deadly Digimon in vulgar battles and decides to join the City because of her now "being interested" in the Hero, and that she can be "quite accommodating" and will "see them soon" and joins the Digital Dimension.


 * }

Digimon Links
Mutant versions of the Seven Great Demon Lords protect high-level keycodes Hina Kurihara needs to analyze and take control of the data that prevents the linking of areas in the Digital World. Links and proceed to defeat them for the codes.

Digimon ReArise
When the Spiral cause problems in the Human and Digital Worlds the Seven Deadly Digimon decide to use this to their advantage, though some of the, such as , set out to deal with this problem.

Beelzemon
Beelzemon is a member of the Seven Deadly Digimon who prefers to live as a loner, and holds a powerful contempt for Digimon who exploit cowardly tactics. It can Mode Change to Beelzemon: Blast Mode and rides the Behemoth.

Beelzemon intercedes when it comes across a and Otamamon being threatened by  and, incensed at the craven display. He easily fends off their attack, but the pair return to their boss,, who sends his lieutenant to assist them in expanding his territory. The trio post wanted posters of Beelzemon to turn sentiment against him, accusing Beelzemon of a wild, bloody rampage, and successfully but ineffectually convince a crowd of Guardromon to attack him. However, Beelzemon learns of the deception when it reunites with Falcomon and Otamamon, and after being ambushed by Goblimon, Raremon, and the Guardromon a second time, he forces Goblimon to admit that it was SkullSatamon, and therefore ultimately Creepymon, behind his troubles. SkullSatamon emerges and attempts to use the now disillusioned Guardromon as human shields, infuriating Beelzemon, who soundly trounces SkullSatamon. Beelzemon spares his life so that he can deliver a message to Creepymon—to deal with Beelzemon directly if he's going to give him problems.

Some time later, Beelzemon easily defeats. With a bruised ego, Mephistomon sets a trap for Beelzemon by casting In-Training Digimon into a portal. Beelzemon goes to save the weaker Digimon but is himself trapped, allowing Mephistomon to steal his data and degenerate him into Impmon. Mephistomon scattered most of the data, which Impmon was able to recover, but kept some to empower himself.

Impmon tracks the data to the human world, where he runs into the and  while attempting to assault some humans he felt were disrespecting him. He senses Mephistomon's power coming from the Protagonist's Mephisgram app and performs a dive into the phone that drags the Protagonist and Herissmon along with him. Impmon continues to search for Mephistomon but is unable to find it and eventually ruinites with and its Tamer. After learning that they had fought Mephistomon, it demands to know where it is though is saddened to learn that it had gotten away. They don't have to search much longer though, as Mephistomon digivolves to and attacks them. Rasenmon fights and stalls it, allowing Impmon to search for the last of its missing power. had also been searching for Mephistomon, and breaks into the Digital Point, conveniently right in front of Impmon. It had also unintentionally found the last of Beelzemon's power whilst doing so and though initially relunctant to give it its power back, not wanting to help a member of the Seven Deadly Digimon, it changes its mind after hearing that Impmon had promised to help its new friends who had trusted it but also because defeating Gulfmon was important. It gives Impmon back its power – allowing it to turn back into Beelzemon, with the two then joining the battlefield just as Gulfmon had defeated Rasenmon. The combined might of Rasenmon, a member of the Seven Deadly Digimon, and a member of the Royal Knights isn't enough to defeat Gulfmon however which forces Beelzemon and Gallantmon to digivolve to Beelzemon: Blast Mode and. The three of them are then able to kill Gulfmon. After the fight, Gallantmon reminds Beelzemon that they are actually enemies though they agree to fight later and not now as they used up too much energy in fighting Gulfmon. Beelzemon then leaves on Behemoth.

Attacks
 * Beelzemon
 * Double Impact: Rapid-fires the Berenjena.
 * Darkness Claw: Raises a claw overhead and then cuts the opponent to pieces.

Lucemon
Lucemon is a member of the Deadly Digimon. In the distant past, Lucemon was the highest ranking Angel Digimon. It had a God-like side that showed mercy but also a demonic-like side that planned to destroy the World.

During those times, the Digital World was rife with chaos with Digimon fighting all the time, killing each other. Lucemon was able to stop these fights using its powers which allowed the Digital World to finally be at peace. Some time later however, the Digital World was again rife with chaos and war after Lucemon had realised it had the power to rival the Gods and so decided to destroy the new World and create a new one. When Lucemon attacked the Gods, its arrogance caused it to digivolved to Lucemon FM. As Lucemon was previously an Angel it was able to resist Holy attacks, which helped it in its battles against the Gods. As Lucemon continued its war, other evil Digimon joined in – the most notable being, , and , fellow Deadly Digimon. Lucemon and its army destroyed large parts of the Digital World and killed countless Digimon but eventually the fought against Lucemon. Lucemon was able to kill eight of them, with the remaining two Legendary Warriors able to defeat and seal Lucemon away in the Dark Area.

Lucemon FM is later freed due to the distortions caused by Spiral that the were attempting to seal. Lucemon is confronted by six of the Royal Knights, but easily deals with them. Alphamon realises that the only way they could take out Lucemon would be for all thirteen Knights to attack at once, however the remaining members were busy fighting. Not being able to reconvene to fight Lucemon, requests the help of the  to fight Lucemon in their stead. During the fight, Lucemon FM warp digivolves to Lucemon SM. Alphamon then digivolves to Alphamon Ouryuken and proceeds to chase off Lucemon.

The Royal Knights attempt to find Lucemon so they can finish it off for good but are unable to find it within any part of the Digital World, leading to assume the  were sheltering in its former home. This lead to a large scale battle between the Royal Knights, Archangels, and the.

Lucemon had been hiding in the gap between the Real World and the Digital World however, and had teamed up with and. They helped spread its influence, gave  the ability to steal 's power, and had the  awaken  with the intent on having it destroy the Digital World – though all these planned ended in failure due to various Digimon putting a stop to them.

Lilithmon


Lilithmon is a member of the Seven Deadly Digimon.

In the distant past, Lilithmon was one of the many Digimon that helped in its failed attempt to destroy the World and create a new one.

Creepymon


Creepymon is a member of the Seven Deadly Digimon.

In the distant past, Creepymon was one of the many Digimon that helped in his failed attempt to destroy the World and create a new one.

Years later, Creepymon tries to expand his territory and sends and  as his muscle. However,, despite being a fellow Deadly Digimon, becomes annoyed by their bullying weaker Digimon and chases them off, which leads Creepymon to send his lieutenant, , to assist them. The trio post wanted posters of Beelzemon to turn sentiment against him, but Beelzemon sees through the plan and forces Goblimon to admit that it was SkullSatamon, and therefore ultimately Creepymon, behind his troubles. After soundly trouncing SkullSatamon, Beelzemon spares his life so that he can deliver a message to Creepymon—to deal with Beelzemon directly if he's going to give him problems. Suitably cowed, Creepymon decides to stop bothering Beelzemon for now, but resentfully plots future vengeance.

Creepymon later teams up with Lucemon and, with the three of them hiding in the gap between the Digital World and Real World. They helped spread its influence, gave Mephistomon the ability to steal 's power (with this being Creepymon's revenge against Beelzemon), and had the  awaken  with the intent on having it destroy the Digital World – though all these planned ended in failure due to various Digimon putting a stop to them.

Creepymon later opens a gate to the Human World, though upon them being teleported there a Digital Point opens up with it and Barbamon being spawned right in front of Nozomi Tamada and. Nozomi tries to befriend them, unaware of who they are, though after they tell them they plan to invade and take over the Human World she gets mad and tells them not to. Annoyed at the Human child, Creepymon tries to kill her though Pumpkinmon takes the blow instead, and then digivolves to. Just as the duo are about to kill NoblePumpkinmon, they are saved by, , , and – members of the. The duo then fight the four Royal Knights and NoblePumpkinmon. After a hard fought battle, the five of them are able to make the two Demon Lords retreat when they realize they can't win.

Attacks
 * Flame Inferno: Attacks with extremely high-temperature that burns up the opponent without a trace.

Barbamon


Barbamon is a member of the Seven Deadly Digimon.

In the distant past, Barbamon was one of the many Digimon that helped in its failed attempt to destroy the World and create a new one.

Barbamon later teams up with Lucemon and, with the three of them hiding in the gap between the Digital World and Real World. They helped spread its influence, gave  the ability to steal 's power, and had the  awaken  with the intent on having it destroy the Digital World – though all these planned ended in failure due to various Digimon putting a stop to them.

Creepymon later opens a gate to the Human World, though upon them being teleported there a Digital Point opens up with it and Barbamon being spawned right in front of Nozomi Tamada and. Nozomi tries to befriend them, unaware of who they are, though after they tell them they plan to invade and take over the Human World she gets mad and tells them not to. Annoyed at the Human child, Creepymon tries to kill her though Pumpkinmon takes the blow instead, and then digivolves to. Just as the duo are about to kill NoblePumpkinmon, they are saved by, , , and – members of the. The duo then fight the four Royal Knights and NoblePumpkinmon. After a hard fought battle, the five of them are able to make the two Demon Lords retreat when they realize they can't win.

Attacks
 *  : Unleashes all of the Dark Area's evil energies at once as an extremely high-temperature explosion that burns up everything without a trace. Even MaloMyotismon's "Screaming Darkness" releases only a fraction of these energies.

Belphemon
Belphemon is a member of the Seven Deadly Digimon.

In the past, Belphemon was defeated by and was sealed away.

Some time later, when ShineGreymon was training with and, a group of Spiral-1004R spawn and manage to break Belphemon's seal, freeing it as Belphemon SM. The group attempt to attack SM whilst it's still dormant, however the Spiral keep getting in the way. As they fight against the Spiral, Belphemon SM's alarm clock suddenly sounds which awakens Belphemon SM and causes it to digivolve into Belphemon RM. Its roars were too much for Angewomon to handle, and they also cause Rasenmon large amounts of damage. ShineGreymon BM is eventually able to defeat and seal away Belphemon RM once again.

Leviamon


Leviamon is a member of the Seven Deadly Digimon.

Leviamon spent a long time sealed away and asleep in the Net Ocean.

One day, under the instruction of, , and , it is awoken by the and finds itself in front of , , and a group of weaker Digimon. Before it could launch an attack on them, it is attacked by of the  – which allows its near victims to escape. then joins the battle though the two of them struggle against its power. had been sent by the other to find out who had woken it up and is able to find the Vademon and convinces them to reverse the ritual they had done to wake it up as it would destroy the World. The Vademon agreed to do so, as if Leviamon destroyed the World they wouldn't be able to take it over and rule it. With the help of Gankoomon they are able to open a portal to the Net Ocean, which Examon and Seraphimon then push it into – which once again seals Leviamon away.

Digimon Chronicle X
The are seven Demon Lord Digimon that usually work on their own, however  plans to use the other six for its own goal of destroying every Digital World in existence. Lucemon,, , , and each acquired the X-Antibody for their own reasons, whilst  and  are forced to undergo X-Evolution by Lucemon after it awakens them from their slumber.

Some of the had visited the Old Digital World that had been decimated by the X-Program by  ten years earlier to preform a survey there to find out its current state and discover that the old Digital World had turned into a world of chaos, with Digimon fighting over who would get to rule different parts of the Digital World. suggests a battle royal, with the winners having the right to decide the future of the old Digital World, and the Royal Knights take part themselves to try and make sure no evil Digimon win. This gets troublesome however when the Demon Lords arrive, fight the Royal Knights in both the Dark Area and the Old Digital World, and defeat multiple members of the Royal Knights. This leads King Drasil to dispatch more of them and eventually the Royal Knights defeat six of the Demon Lords.

However this is exactly what Lucemon wanted, and after returning to the Dark Area to meet with, which was part of its secret plan, Lucemon pulls the defeated Demon Lord's bodies into the Dark Area, then instructs Keramon X to warp digivolve to , who then splits itself into seven and absorbs the defeated Demon Lords. Lucemon then allows itself to be absorbed as well, and the seven Diaboromon wield the Demon Lords as swords, attack the Royal Knights, and then eventually fuse together into, with Lucemon acting as its consciousness. After Ogudomon X is killed by the Seven Great Demon Lords are freed from the dying Ogudomon X's body, and use the last of their powers to escape back to the Dark Area.