성별 : 정보신청
생일 : 정보신청
키/몸무게 : 정보신청

Sagiri Izumi (和泉 紗霧)The younger step-sister of the protagonist. Shut in her room all day, she was secretly the illustrator for her brothers light novels and is popular on the web, though nobody knows that she is actually a 13-year-old girl.