The second main character. Haru is shown to be a bright and cheerful girl of the Black Class. She aims to become friends with everyone. She is kind and naive to everyone without fail until they become hostile with her. Haru is the target that everyone in the class is after. She has strange scars on her thighs, which were discovered by Tokaku by flipping up her skirt. She is later shown to not only have scars on her thighs, but all over her body as well. She is uncomfortable with people looking at them.