Momoko Koigakubo is a fictional character from Gakkou no Kaidan (Ghost Stories). She is a student at the school and one of the supporting characters in the series. In the story, she appears as part of the school setting and contributes to the group dynamic around the supernatural events and urban legends that drive the plot. Her role is minor compared with the main cast, but she helps flesh out the everyday atmosphere of the series and its school-based horror-comedy tone.