16 years old. A girl with blue hair and red eyes. Her eyes lack highlights, and she wears a grey dress. She has a saint-like, gentle personality, though she remains as taciturn as ever. Originally a daughter of the noble Louvre family with a mansion in the Royal Capital, she had been living in the slums nearby. She possesses a Demon's Axe and is enveloped in a red aura when it is manifested. She has an incredibly resilient spirit for a high schooler, unfazed by corpses, looting or cutting them without changing her expression.

16 years old. Full name: Eber Alfie. A commoner living in the Royal Capital with his parents and an older brother named Will. A boy with black hair and sharp, sanpaku eyes. He wears a single garment that looks like layered clothing. He attends the elite Juo Academy, where he ranks 2nd in his year; he is exceptionally intelligent. He excels at observation and can read people's emotions, see through lies, and communicate with the silent Enri. Conversely, he is introverted and bad with people, usually acting as a loner.

A beautiful girl characterized by long, straight black hair and vivid green eyes. She wears a white blouse and a black skirt. Her looks are a constant topic of conversation at her school, and being from a prestigious family, she attracts a lot of attention. In contrast to her appearance, she has a very dark personality; she targets those who seem unlikely to resist her for bullying and engages in quite malicious behavior.

A naked girl with silver hair and red eyes who emerged from the flesh-wall of D-029. Initially, she speaks in broken fragments and appears to have low intelligence, swallowing the heavily injured Enri and the others. _____ However, she actually possesses very high intellect. The giant mass of flesh is like a home cultured using Demon God blood as nutrients; she can manipulate the internal space and cellular tissue at will. Her human-like form is merely a terminal made of cells; though many may appear, they are all controlled by a single consciousness.

Thought to have been killed a year ago, but he survived. His appearance is unchanged, but he now wears a constant, eerie smile. While he seemed gentle and relatively sane compared to the other two when he was involved with Enri a year ago, his personality has shifted to one of cruelty and cold-bloodedness. It turns out his previous persona was entirely an act, and this is his true nature. He intends to make the "Abyss" surface and use "D-029" at its bottom to destroy the Royal Capital.

Takes the form of a giant spider covered in numerous eyeballs. It attacks with a terrifying roar.

Appears to be a tall man, but possesses long claws and blood-stained teeth.