Eater

Eater (イーター) is the name of a type of lifeform in Digimon Story: Cyber Sleuth and one set of antagonists.

Design
All Eaters have elements of. They were designed by Oh!Great.

Digimon Story: Cyber Sleuth
Eaters are dangerous creatures who inhabit the reaches of Cyberspace EDEN. One ambushes Aiba, Nokia Shiramine, Arata Sanada, and their partners while in Kowloon Lv. 1. Aiba and Nokia hold it off while Arata activates an old terminal, through which they escape. Aiba, however, is unable to make it in time and ends up capturing them. By some miracle, they are able to log out but as a half-digital entity, giving them potent hacking abilities as well as the power to Connect Jump into digital spaces.

Eaters continue to be a recurring threat, as they feast on human data while in Cyberspace EDEN. They are behind EDEN Syndrome, as their consumption of human mental data leaves the original bodies comatose. They can also be found at the cores of Digital Shifts, where digital space bleeds into the Real World. Defeating them ceases the Digital Shift as well. Arata ends up investigating the Eaters with Aiba's help, eventually coming across the researcher Akemi Suedou.

Eaters turn out to not only have infested the Real World. They attacked the Digital World as well, turning it into a hellish landscape on the brink of destruction and prompting the actions of the to invade the human world. Crusadermon reveals that Eaters only are as they are because of the influence of humanity. The Royal Knights become divided on how to handle the Eater threat; one faction seeks to exterminate humanity while the other wishes for co-existence and unity. In the course of exterminating humanity, Crusadermon causes a giant Digital Shift that encompasses all of Tokyo, unleashing Eaters into the human world as well.

During the course of Aiba's battle to stop the Royal Knights, a hidden truth is revealed. When the first EDEN beta test occurred, Aiba, Nokia, Arata, Yuuko Kamishiro, and Yuugo Kamishiro managed to find a way into the Digital World. There, they encountered an Eater, who absorbed Yuugo and causing him to be the first sufferer of EDEN Syndrome. Eaters exist as a unified network, constantly communicated with each other. Yuugo becomes part of that gestalt, slowing the Eaters' corruption of the world while at the same time causing them to seek out data to consume.

Eventually, the extermination faction of the Royal Knights is defeated. Suedou comes up with a plan to send the Eaters back to the Digital World to save humanity. He also reveals that the Eaters have a main unit titled the Mother Eater, which, if eliminated, would stop the other Eaters as well. Yuugo is integrated with this core, so Aiba and his friends resolve to enter the Digital World, where the Mother Eater has merged with 's core, and end the threat once and for all. Fighting their way through King Drasil's defensive programs, Aiba manages to rescue Yuugo. Unfortunately, removing him from the Mother Eater means that the Eaters' erosion of the worlds will only accelerate. Suedou steps in at this moment, definitely showing that he has been working toward his own goals the entire time. He wishes to become one with the Mother Eater and King Drasil, merging everything together to create a new world without sorrow. Aiba must then take down the Mother Eater after Suedou merges with it and, despite the erosion they personally suffered through contact with Eaters, attempts to save Suedou as well. Seeing Aiba's actions and emotions, Suedou has an epiphany and decides to see what future Aiba will create.

Suedou reveals the Eater's true nature at this moment. Eaters exist in a higher dimensional space that links worlds together. Their job is to observe and send data back to the higher dimension. When they came into contact with Cyberspace EDEN, they took on form and substance that corrupted them from their original goal. Suedou uses King Drasil's power to reformat the Eaters back to their original harmless form. These forms are like spheres of light, and speculates that phenomena such as  and s were actually Eaters who became visible due to Digital Waves. Nevertheless, Eaters are now harmless, and the possibility of them once again being corrupted is remote enough to be essentially impossible.

Arata (Eater)
Arata (Eater) is a digital lifeform whose name and design are derived from Arata Sanada.

Digimon Story: Cyber Sleuth
Attacks
 * Incept Handler: Extends the fingers of its arms as tentacles and pierces the opponent.

Eater (Humanoid Mode)
Eater (Humanoid Mode) is a digital lifeform whose name and design are derived from "" and "", and whose design includes elements of.

Digimon Story: Cyber Sleuth
Attacks
 * Melt Processor

Eater (Purebreed Mode)
Eater (Purebreed Mode) is a digital lifeform whose name is derived from "" and "", and whose design is derived from the and includes elements of.

Digimon Story: Cyber Sleuth
The Eater is a mysterious life-form that suddenly broke out in cyperspace, and is whispered about as a ghost story. It lacks intelligence, and is said to suck the data dry from humans or Digimon at a touch, like an. It and corrode cyperspace.

As Aiba and his friends were searching the lower levels of cyberspace, an Eater suddenly appeared before them from a spatial distortion.

Digimon Story: Cyber Sleuth (manga)
When Takumi is fighting some Demons members, an Eater suddenly appears and absorbs the Hacker group. When reporting to Kyoko, Takumi remembers the Eater who attacked him in Coulomb Lv. 1.

Attacks
 * Erode Device

Eater Adam
Eater Adam is a digital lifeform whose name and design are derived from "" and the mythological, and whose design includes elements of.

Digimon Story: Cyber Sleuth
Attacks
 * Interrupt Handler
 * Spirit Crash

Eater Eve
Eater Eve is a digital lifeform whose name and design are derived from "" and the mythological, and whose design includes elements of.

Digimon Story: Cyber Sleuth
Attacks
 * Mastermind Boat
 * Memory Divide

Mother Eater
Mother Eater is a digital lifeform.