reverend who created the facility as an experiment to determine the definition of "religious faith", including gathering all the various floor masters and providing them with victims. He is extremely eloquent, able to mesmerise his listeners through words, and harbours a cold and logical heart without mercy. Gray also employs the use of drugs to make his victims hallucinate in order to see their true inner selves. His floor is modelled after a church, with the stained glass window concealing the exit of the building. Other characters A character introduced in the manga adaptations, Lucy is Cathy's best friend who harbours a borderline insane admiration for her. After graduating school together, the both of them became jail guards that specialised in punishing criminals, often with Lucy dealing the finishing blow. When Cathy is invited to become a floor master by Danny, Lucy becomes her first victim, deeming her a sinner as well for all the prisoners she had killed. A character in Episode.0 and the original floor master of B3 before being replaced by Eddie. Shin was originally a pair of twin brothers who owns a furniture store selling furniture made from human flesh. Deeming that the twins fit the criteria to become an angel for Gray's experiment, Danny invites them. However, Gray would only accept either one of them, deeming their dependency towards each other as imperfect. Driven by the idea that only one being is perfect, each twin decided to kill the other. It is unknown which twin succeeded killing the other as the survivor reappears and reintroduces himself as the "one complete" Shin. In the official Angels of Death guidebook, it is explained that while working on one of his furniture, Shin hurt his hand by accident, causing his blood to stain the furniture. Seeing the beauty in the furniture stained by his own blood, Shin used his own body as ingredients to make the furniture without a care of his own body, which resulted with his death. Media Manga A manga adaptation by Kudan Nazuka and Makoto Sanada began its serialization on the Monthly Comic Gene magazine on January 27, 2016 and ended its serialization on September 15, 2020. The prequel of the game, Episode.0, also by Kudan Nazuka and Makoto Sanada began its serialization on the MFC Gene Pixiv series on March 3, 2017. The first volume of a 4-koma manga series titled Satsuten! by