Eiji Futami

Eiji Futami (双見英司) is the main antagonist of Digimon ReArise Season 2.

Description
Eiji is graduate student who majored in information science. He is a part-time worker who recently joined the Truffle Cafe. He has a gentle demeanor, and interacts with people and Digimon without distinction. He studied under Keito Tamada's father, and is acquainted with Keito and Nozomi Tamada and has known them for five years. He goes to the same college as Keito and they work together in the same lab. He met their Father at a conference and then the two befriended each other on social media and eventually became close enough friends that he introduced him to his kids though in recent times the two of them have been unable to hang out due to their Father working overseas and Eiji being busy with college/work.

Etymologies
Name used in Digimon ReArise.
 * Eiji Futami (双見英司)

Fiction
When Eiji was a young boy, his Mother worked in a facility that researched the Digital World. One day, it caught on fire and his Mother ended up falling into the machine that transports people to the Digital World. Just before she did, she was able to throw Eiji to safety, meaning only she was transported away.

For a long time afterwards, Eiji had the same dream over and over where a voice begs him for help. He has it so often he is sick of it and it drives him crazy. As a result he decides to take matters into his own hands end the dream forever, coming up with a plan to do so.

Five years before meeting the other Tamers, Eiji visited the hospital and overheard Sara Shinkai begging to be allowed to continue using her VR treatment as she had met a Digimon there and didn't want to be separated from it. Though the doctors didn't believe her, Eiji did. He stole the VR headset she had been using and connected it to his laptop and was able to locate. He then transferred Tapirmon from the headset to his laptop, and then from his laptop to Sara's smartphone – allowing them to reunite in the Real World. Now reunited with her best friend, she swore loyalty to Eiji.

Five years later, Eiji created a virus and accidentally infected with it. Although this wasn't intentional, Eiji uses this to his advantage and forces Takumi Hiiragi and Dorumon to work for him and help him achieve his goals of breaking into the Kernel as he was the only one who knew how to cure the virus. He has them team up with Sara and Tapirmon, and has the four of them do his bidding. Eiji's plan is to have them capture Spiral with his Sprial Capture Program, steal DigiCores from the (who had been given them by the ), and then trap a member of the  so that he can obtain their power, then use all of these together to get to the Kernel.

Eiji was hired as a part-time waiter at the Truffle Cafe when the was on vacation with  overseas, though had the day off when the Protagonist returned home and visited the Cafe, so they were unable to meet. Unbeknownst to the others, he did this so he could be close to the Tamers and manipulate them, always knowing where they are, with no one else aware of his true intentions.

Some time later Eiji finally meets the Protagonist and when they visit the cafe with  and. Michi Shinjo and Mayu Kohinata are surprised that they have never met before. Eiji relays that he had heard all about Mon and Hackmon from and that as soon as he saw Mon, he knew it was her - much to the shock of Mon. The girls point out that she dresses strange and decide to take her shopping though they realise that since Mon has no smartphone they wont be able to hide Hackmon. Luckily for Mon, Eiji gives her an old smartphone as he had many spares.

When a strangely high amount of Digital Points open up Keito asks Eiji to help him looking into why so many had opened, though they are unable to figure out why.

When Nozomi draws a picture of Elecmon, Eiji is the only one able to figure out what her drawing was. Shortly after a Digital Point opens up outside Truffle and so, deciding to research the phenomenon (as part of their college's research is about Digimon), he joins the rest of the Tamers as they battle the Spiral and watches as they defeat them. The group come across a ToyAgumon, which attacks out of fear for its life, though Eiji talks  and  out of attacking it in retaliation, telling them that the ToyAgumon was just scared. Pumpkinmon and Nozomi are then able to convince the ToyAgumon that the group mean no harm and they all become friends with it. Keito then thanks Eiji for stopping them from attacking it.

By using Keito's app that allowed communication whilst in Digital Points as a basis – as well as the data he learned from studying the Spiral – Eiji is able to create a new app that allows similar communication between the Human World and the Digital World. When the Tamers try it out, they are suddenly attacked by a group of Spiral as they were attracted to the app. Herissmon senses the Spiral data inside the app and when questioned about it Eiji informs them of the fact he he had used Spiral information to make the app. Eiji apologises, not realising that this would be an issue, though the group forgive him as the positives of the app outweigh the negatives.

When, , , and – of the , , and  – are fighting due to the dispute between the Royal Knights and Three Archangels over if  is hiding in the Archangel's domain or not, Eiji comes up with a plan and tells Mon to point out that not all members had been involved in their prior discussion that caused the battle. This was successful and the groups agreed to a summit that would involve all members. He also comes up with a potential list of topics that would be brought up during the discussion so that the Tamers could practice how they could deal with each situation.

A few days before the summit, Eiji allows Mon to use the cafe to prepare and gives her and Hackmon coffee. As the duo drink it they reminisce with Eiji about Mon's time with the Tamers. Eiji then decides to help her with the preparations.

He then attends the summit via video call.

With Eiji's plan almost complete he has Takumi exceute the plan to trap. Takumi has a large group of evil Digimon attack the Digital World, with them travelling there through a portal from the Dark Area. Seraphimon and the  defeat them and eventually find the portal, leading them to Takumi and Dorumon. As they fight against Takumi realises they can't win and has Gaiomon flee with Seraphimon pursuing them. As they run away, they try to trick Seraphimon into falling into their nearby trap, whilst Seraphimon charges up an attack that would kill everyone. As Takumi refuses to give up, still wanting to defeat the Archangel, Gaiomon surrenders – finally standing up to Takumi, refusing to be evil and blaming itself as it realised that Takumi would never do something evil unless it was to protect his partner. Gaiomon then ends its partnership with Takumi and dedigivolves to Dorumon. Seraphimon accepts the surrender, however Sandiramon does not and attacks the duo with the intent to kill them. The other Tamers arrive and join the battle to help Takumi and seeing that Takumi had failed, Eiji activates the Spiral Capture App on Takumi's phone, releasing a large group of Spiral which then attack everyone. Eiji had hacked the Spiral and given them new abilties, which they use to paralyse everyone (the ability also absorbing some of their data). Eiji had known that Takumi would probably fail and whilst insulting him accidentally reveals that he was the one that infected Dorumon with the virus. Realising that Eiji had tricked him, as well as learning that the Spiral paralysing everyone included Dorumon, Takumi charges into the battle to try and protect his partner. Takumi finds Dorumon on the verge of death and admits he had done all the evil things to protect it and would still do it all over again, despite knowing that he was doing wrong as he just wanted to protect his partner. The two reconcile and come to understand each other, with Takumi deciding that he will stop working for Eiji and instead cure Dorumon's virus on his own. With their partnership renewed and the duo back on the side of good, Dorumon digivolves to, defeats the Spirals, saves everyone's lives, then uses its new powers to remove everyone's paralysis – ruining Eiji's plan. Though he was disappointed to lose Takumi, he didn't mind too much as he still had Sara and could still achieve his goals with or witout Takumi.

Now having everything they need, Eiji and Sara prepare for the final step to invade the Kernel, though Eiji also sets up a Digital Point in the location first and has Spiral pretend to be him and Sara by manually hacking their appearence and then using an app to play their voices out of the fakes to trick the others. Just as the fake versions pretend to start the plan, Leopardmon and Jesmon show up and attack them. As they had to go to an exact location to be able to infitrate the Kernel, it made finding them easy. Eiji had thought the Royal Knights would be busy but they had outsmarted him as they had lied to him about what they'd be doing as Jesmon had suspected Eiji from the start. The fake Eiji summons a large group of fellow Spiral and though they are able to paralyse the two Knights, they had not come alone. ambushes them from the sky and kills them, however this reveals to the trio that they were not the real deal and instead, their deaths triggers the hidden Digital Point – sucking the three of them into it as Eiji and Sara laugh at them, watching from afar.

They then succesfully complete their plan and open a gateway Kernel. The Three Archangels were onto them however, and before they can go inside it, comes out of it and attacks them. Eiji summons Spiral, whilst Cherubimon summons many Angel Digimon and using a program they had created to nuetralize Eiji's Spiral (having analyzed the program when it was used against them in the past) it is able to delete Eiji's Spiral. Still having loads left, he summons more of them and has Sara digivolve Tapirmon to in the hopes that they can defeat Cherubimon in a. Cherubimon easily deals with them despite the numbers however Eiji uses his hacks and disguises the Spiral as Angel Digimon and Machinedramon which is enough to throw Cherubimon off with the Spiral and Machinedramon being able to team up and defeat Cherubimon. As they prepare the killing blow;, , and their partners arrive – having noticed the gateway from afar due to how bright it was. Though confused at the fact Eiji was evil, they defeat the Spiral and save Cherubimon, though in defeating the Spiral, they are effected by their palarysis ability. This doesn't last long however, as Gaiomon Fierce Blade Mode also shows up and is able to remove the palarysis and is followed shortly after by Rasenmon, HeavyLeomon, and Grizzlymon. The group fail to stop Eiji however as he is able to have Machinedramon and the Spiral stall them long enough to be able to run through the gateway. Unfortunately for Eiji, the gateway remained open due to Cherubimon using its remaining power with the Tamers being able to get Rasenmon, Jesmon (who was able to escape the prevous Digital Point), and their Tamers through the gateway as well before Cherubimon passes out. Eiji is then able to stop anyone else from accessing the Kernel.

Now in the Kernel, Eiji begins using it to access all information about the Digital World both past and future though the amount of data, most of it chaotic and tangled, makes the task unmanageable. Deciding that said information was useless, he heads off to look for the main access point to make searching for information easier. He is eventually able to find it, and after playing around with the data is able to figure out how to work the Kernel. Just as he has it figured out though; the Protagonist, Rasenmon, Mon, and Jesmon arrive to confront him with Eiji realizing this meant Sara had failed. He sends Spiral after them, though Jesmon is able to defeat them having been able to copy Gaiomon's technique from simply having seen it once. Undeterred, Eiji summons more of them and has them attack the Humans, figuring they would rather save their partners than stop him. After they defeat those Spiral, they group are suddenly ambushed by a memory revealing not only did his Mother die whilst stranded in the Digital World, she gave birth whilst there with Mon being his younger sister. As he freaks out upon learning this, one of the Diaboromon type Spiral reveals it is actually a Spiral-4004Y then attacks him – with this being the original Spiral that had glitched. As the group question the fact that this Spiral was acting on its own instead of being part of the Hive Mind, it names itself Spiral Origin and reveals that it plans to wipe out both Humans and Digimon as revenge for them persecuting the Spiral. Jesmon and Rasenmon try to stop it, but it easily defeats them – having gained the power of the Kernel thanks to Eiji. It then banishes everyone from the Kernel and begins its plan to destroy both Worlds.