katagari yuuichi is a sophomore in high school. he is a poor student who lives alone and works part-time to make a living. he values his friends more than anything else, following his mother's advice that "friends are more important than money" but he is also crazy and manipulative, he is murderous towards those who hurt the people he loves. only caring for his friends and nothing else. in this situation he is weirdly obsessed with this new person and he wants to get to know them.