そーちゃん 舌切爪牙
A 15-year-old boy who attends Mebuki no Sono. He is lively and straightforward, a bullet-like boy who acts before thinking. His behavior is often more childlike than his age suggests, and he sometimes fails to read the room. While he tends to forget what people say, he has the ability to accurately remember anything he sees once. He is Nodoka's stepbrother and is somewhat fed up with his sister's fussing over him.
shitakiri souga