Seven Great Demon Lords

The Seven Great Demon Lords (七大魔王), Seven Deadly Digimon, or Mao Digimon, are a group of Demon Lord Digimon who each represent one of the. They are based on various demons from within Judeo-Christian mythology, a reference to 's, most notably ' by John Milton and ', an anonymous 17th-century grimoire. 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 Great Demon Lord's respective sin), and Code (the Great 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 Great Demon Lord 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 that appear in Digimon Collectors. Once they begin appearing across the, they attract Digimon exhibiting their respective sin, as well as the , who is sent to investigate them by the. Although the protagonist defeats the Great 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.

Fiction
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Digimon Data Squad
Long ago, the Great 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 Great 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.


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Digimon World DS
After getting the final quest, the Seven Great Demon Lords send the protagonist a message to challenge the Tamer King to a fight before they destroy the Digital World. The protagonist is challenged to battle by each of the seven in turn, with each victory unlocking a new area. Afterwards, they challenge the protagonist to fight all seven of them one after the other in a series of battles to the death. After Belphemon Rage Mode is defeated, Beelzemon reappears, having managed to reform its evil ways, and grants its power to the protagonist in the form of scan data.

Lucemon Chaos Mode
Lucemon Chaos Mode first appears at Core Field at level 75, then at Destroyed Belt.

Leviamon
Leviamon is fought in the Demon Lord quest at the Undersea Drive and again at Destroyed Belt.

Daemon
Daemon must be defeated by the player as part of the quest to defeat the Seven Great Demon Lords and is the first Great Demon Lord that the player fights. The fight happens at the Hard Mountains and then at Destroyed Belt.

Belphemon Rage Mode
Belphemon is one of the final bosses in Digimon World DS. After defeating the first Great Demon Lord, Belphemon challenges the player by luring him/her into the final domain, where he and the other Great Demon Lords ambush the player. When the first six fall in battle, Belphemon will personally fight the player. He appears as the strongest Great Demon Lord and the strongest unobtainable boss or even the strongest Digimon in the game.

Barbamon
Barbamon appears first at Lava River, then at Destroyed Belt.

Beelzemon
Beelzemon appears first at Sky Palace and then at Destroyed Belt. He is the second Great Demon Lord that the player fights. He is also the only obtainable Digimon that is a member of the Great Demon Lords, obtaining a 100% data scan of him and Calumon's after completing Quest 60. Then, any Infermon can digivolve into Beelzemon.

Lilithmon
Lilithmon appears first at Tropical Isles at Level 75, then at Destroyed Belt at Level 99.



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.


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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 Demon Lord in the face before engaging him in battle, much to Veevee's annoyance as she rushes in recklessly. After defeating Barbamon, Veevee warp-digivolves to 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.

Lucemon

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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 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.


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Beelzemon
Beelzemon attacks some Goblimon who are minions of another Digimon.

Lucemon
In the distant past, Lucemon started a rebellion in an attempt to destroy the Digital World and re-create it. Digivolving to Lucemon Chaos Mode Lucemon, with the help of, , , and various other evil Digimon, kill large amounts of Digimon, though eventually the fight against Lucemon. Lucemon kills eight of them, though the remaining two successfully seal Lucemon away.

Digimon Chronicle X
The Seven Great Demon Lords all decided they wanted the X-Antibody for themselves, so take advantage of 's plan to defeat Digimon and send them to the Dark Area.

Laylamon
Laylamon wanted the X-Antibody, as she had decided acquiring it would make her more beautiful. Whilst sealed in the Dark Area, Laylamon leads a large group of evil Digimon into trying to escape. , who had sealed the evil Digimon there, requests help from the Royal Knight,. Examon kills large amounts of the evil Digimon, though eventually begins to become overwhelmed by the large amount of them trying to escape. During the battle, Laylamon acquires the X-Antibody, becomes Laylamon X, and then defeats Examon. With the Royal Knight defeated, large amounts of the evil Digimon are able to break out of the Dark Area.

Before Laylamon can kill Examon with "Nazar Nail", appears and attacks Laylamon. As Hououmon protects Examon, Examon feels ashamed at having to be protected, and creates an X-Antibody, using it to X evolve to Examon X. The duo then continue the battle against Laylamon.

Eventually, the Royal Knights defeat Laylamon, and five of the other Demon Lords, after which Lucemon pulls their 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.

Lucemon
Lucemon Chaos Mode not only wants to destroy the old Digital World, it wants to destroy all Digital Worlds in existence. In order to do this, it acquires the X-Antibody, becomes Lucemon X, and awaits for the time to send an invasion to the new Digital World, and kill the so that they could not stop its plan. Lucemon X decides to get a head start against the other Demon Lords by using the Dark Area escape plan to its advantage, and plans to make the other six its pawns.

Lucemon X is present during the fight against in which thousands of evil Digimon try to break free from the Dark Area. After defeats Examon, the large group of evil Digimon successfully break free from the Dark Area.

Lucemon X later manages to convince to join the battle, and then awakens  and, gives them the X-Antibody, turns them into Belphemon X and Leviamon X, and then sends them to fight  and.

Lucemon and Beelzemon then team up to fight, though when arrives to even up the numbers, Lucemon summons  and , and alongside an army of evil Digimon, the group defeat the two Royal Knights. Before they could deliver the killing blow however, suddenly arrives and kills some of the evil Digimon army attacking Gankoomon and Jesmon. Seeing that Gankoomon had been mortally wounded and was on the brink of death, Gallantmon and Jesmon give Gankoomon the X-Antibody, causing Gankoomon to X evolve to Gankoomon X, which also heals all of Gankoomon's wounds. Lucemon would then leave the battlefield upon seeing Gallantmon X, Jesmon X, and Gankoomon X, and would return to the Dark Area, where it met up with for the final stage of its secret plot.

Eventually, the Royal Knights defeat the other six Demon Lords, after which Lucemon pulls their 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.

Barbamon
Barbamon steals treasure from other Digimon, and has grown tired of the old Digital World, so plans to invade the new Digital World to find new treasure, and plans to acquire the X-Antibody so that it can defeat any enemies it comes across.

Whilst searching for this treasure, Barbamon comes across, who wanted to steal Barbamon's treasure. When the duo realise that the old and new Digital Worlds were attempting to connect, the two fight each other in an attempt to be the first to break out of the Dark Area and acquire the treasures in the new Digital World. During the fight, both of them acquire the X-Antibody, and X Evolve into Barbamon X and AxeKnightmon X, and continue to fight. During the fight, arrives and joins the battle, turning it into a three way fight. then joins Crusadermon's side, and the duo defeat Barbamon. AxeKnightmon then flees the battlefield.

Eventually, the Royal Knights defeat five other Demon Lords as well, after which Lucemon pulls their 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.

Daemon
Daemon's plan was to get revenge against the forces of good that caused it to fall, so wanted the rebirth of the "Ultra level" Digimon to do this. Daemon then instead decides that by acquiring the X-Antibody, it could become an Ultra level Digimon itself, so decides to steal the X-Antibody from another Digimon, which it does successfully, becoming Daemon X. Daemon X then uses its new found power to flex its strength by trampling the old Digital World, whilst the Dark Area and old Digital World are at war, and awaits for the arrival of the so that it could get its revenge against them.

Daemon later joins and  in their fight against  and, though  also arrives to even up the numbers.

Eventually, the Royal Knights defeat Daemon, and five of the other Demon Lords, after which Lucemon pulls their 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.

Belphemon
When used the X-Program to kill 98% of all Digimon, Belphemon was asleep, and spent more than ten years resting. Many evil Digimon attempted to kill Sleep Mode whilst it slumbered, but Belphemon would kill them all before they could. After being awakened by, Lucemon caused Belphemon to undergo X Evolution, and then alongside the also awakened , would attack and. This allowed even more evil Digimon to escape the Dark Area. later joins to duo in the battle, though also arrives to even up the numbers.

Eventually, the Royal Knights defeat Belphemon, and five of the other Demon Lords, after which Lucemon pulls their 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.

Leviamon
When used the X-Program to kill 98% of all Digimon, Leviamon was asleep on the bottom of the ocean floor in the Dark Web, an area next to the Dark Area. Due to how big Leviamon was, no other Digimon attempted to attack it out of fear. After being awakened by, Lucemon caused Leviamon to undergo X Evolution, and then alongside the also awakened , would attack and. This allowed even more evil Digimon to escape the Dark Area. later joins to duo in the battle, though also arrives to even up the numbers.

Eventually, the Royal Knights defeat Leviamon, and five of the other Demon Lords, after which Lucemon pulls their 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.

Beelzemon
Beelzemon had no interest in what was going on in the old Digital World, and instead chose to remain a loner, managing to acquire the X-Antibody on its own, becoming Beelzemon X. Despite this, was able to convince Beelzemon X to join the battle in the Dark Area, with Beelzemon agreeing due to being bored. Lucemon and Beelzemon then team up to fight, though when arrives to even up the numbers, Lucemon summons Cherubimon (Evil) X and Ophanimon Falldown Mode X, and alongside an army of evil Digimon, the group defeat the two Royal Knights. Before they could deliver the killing blow however, suddenly arrives and kills some of the evil Digimon army attacking Gankoomon and Jesmon. Seeing that Gankoomon had been mortally wounded and was on the brink of death, Gallantmon and Jesmon give Gankoomon the X-Antibody to Gankoomon, causing Gankoomon to X evolve to Gankoomon X, which also heals all of Gankoomon's wounds.

Beelzemon later fights against, though after the arrival of and  to fight against their evil counterparts,  comes to the aide of Magnamon, turning the fight into a 2v1, and Dynasmon and Magnamon defeat Beelzemon.

Eventually, the Royal Knights defeat five of the other Demon Lords, after which Lucemon pulls their 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.