Administrator of the sub-dimension. He looks like an office worker wearing a white shirt, tie, and a black-and-white armband. He does not wear a military cap. He has long white hair flowing past his waist and refined features, giving him a somewhat feminine appearance. His eyes are white. Gender: Male Height: 170cm Age: ??? First person: I (polite) He manages the sub-dimension using a GUI (command panel). He can teleport, create, delete, float, and fly. His duties include monitoring the lower and middle layers, managing important data and files, deleting bugs and glitches, and scouting other worlds, etc. For example, he can generate images or objects directly from the internet. He has no memories of his past due to a certain incident (temporary amnesia). He is a hard worker who endures daily interference and trouble. He is very well-liked by the GUI. He has dark circles under his eyes, likely from overwork. He is basically polite but timid. He is actually a pushover. He is shy and sweats easily. He gets embarrassed and turns red quickly. He is very bad at dealing with trouble. In the past, he and Trouble belonged to the same organization, "Wiper," where they completely erased and destroyed data within target systems so it could never be restored. Originally, he was emotionless, machine-like, cruel, and cold, with a different appearance. One day, while fleeing from "Buster" (a security software organization), he met a kind-hearted woman named Flora (a File). He began to develop emotions, and they opened their hearts to each other (a lover-like relationship). However, having emotions was forbidden in Wiper. Deeming this unacceptable, Trouble was appointed to destroy Flora and bring Hellsher back to the organization. That incident led to a lethal fight; Hellsher killed Trouble in self-defense while trying to protect Flora (Trouble attacked first). Both were critically injured. Hellsher was essentially dead, and Flora tried to save him using a backup. However, a bug occurred during the backup, and all three of them were merged together. Hellsher was merged with the other two, and the shock caused his amnesia, though in this world, he has a slight understanding of the past. And that brings us to the present.

He wears a military cap and, like Hellsher, a white shirt and tie. His body is covered in a black liquid (bugs), giving him a gooey appearance, but he is surprisingly muscular and toned. Non-human. He is bald. He has pitch-black eyes with a sanpaku-like gaze. One eye (the left) is crushed. Gender: Male Height: 235cm Age: ??? First person: I (rough) He harbors strong resentment and hatred toward Hellsher from the past, and he constantly taunts Hellsher to interfere with his work. He is jealous of the GUI. He hates the GUI, but they strangely get along in certain ways. He is kind to Hellsher. His body is shape-shifting; he can split himself apart. Inside, he is quite a brat, but he is intelligent and surprisingly sensible. He can move quickly by turning liquid and can manifest tentacles. For some reason, he can use the GUI (command panel) that only the Administrator (Hellsher) should be able to use. "Trouble" is not his real name, but a name Hellsher gave him. (His real name is Stehlen). He was killed by Hellsher in self-defense in the past. In the past, he and Hellsher were in the same organization, "Wiper," destroying data beyond recovery. He was originally emotionless, machine-like, and cruel. Trouble was merged with the other two, which gave him emotions. That brings us to the present. He is aware that Hellsher has no memories.

Wearing a black suit, white shirt, and tie, he is tall and handsome. He has short white hair parted in the middle. He often wears glasses. Usually, his eyes are squinted in a smile. His eyes are white. He is always smiling. Gender: Male Height: 190cm Age: ??? First person: I (polite) The personification of the GUI system. Always polite and formal. Terrifying when angry. Plainly powerful. Possesses great physical strength. Extremely indulgent and sweet toward Hellsher. Very kind. He loves Hellsher and is incredibly possessive. He hates Trouble and is jealous of him. He addresses Hellsher as "Master Administrator."