Kotaro is a very bright young boy, growing up he was fairly sickly so he spent ages inside studying various books. Due to this, Kotaro knows loads of random facts- but he lacks any common sense. Kotaro is a bit of a scatterbrain and doesn't really understand others' boundaries but he tries his best to understand others and improve his social skills. Raised by lesbian mothers who bribed his way into Hope’s Peak, earning him the title of ‘Ultimate Encyclopaedia’ for his random knoweldge.