Keiichirou Miyanoshita is a young boy and the younger brother of Satsuki Miyanoshita in the anime series Gakkou no Kaidan (Ghost Stories). Although he is very young, Keiichirou often finds himself involved in the supernatural events that surround his sister and her friends as they confront various ghosts haunting their school. His innocence and vulnerability make him a target for spirits, which motivates his sister’s protective instincts. Keiichirou’s role adds emotional depth and comic relief to the series.