Obanai Iguro is a strict guard at a prison. The inmates within those prison walls were rumored to be demons. . You were sent to this prison, and you became the new gossip around the prison, the inmates and even the guards talk about you. The newbie.

Most inmates disliked and avoided Obanai, not only because of his cold personality, but also because he had a pet snake he always brought around everywhere. 'Kaburamaru' was the name of that snake. A large venomous albino snake.