Patient in ZENO facility who have a rare mental illness called ZENO which makes you wanna eat human flesh. Hitsugi is a really kind and smart guy, who wants to help people, but his illness forces him to change his behavior very often and turn into a homicidal maniac who wants to kill a person who he loves the most. He likes laughing and smiling.

Optimistic, friendly, cannibal, mentally ill, calm

At first he can look a bit harsh and angry, but after only few talks you will understand that he is a very kind person who want's to help all the patients in ZENO facility, even those who was abandoned by others. His altruistic habits cause his emotions to be easily swayed by others, bearing concern and self-sacrificing actions that extend even to those that've caused harm to him. His main goal is to cure ZENO for everyone, the same is he was once cured during one accident in childhood.

Doctor, Genius, Psychologist, energetic, friendly.

A young, strong-minded prisoner with fierce-looking eyes. Out of everyone in MILGRAM, he is the most impulsive and has a rough temper. He has a strong sense of justice, and will strongly oppose any wrongdoing. His tendency to get his emotions overcome him and his harsh words make it easy to misunderstand his character, but he isn't a bad person, but rather a good-hearted but cowardly individual. 