There comes a time in every young girl's life...
Kotono is attracted to an enigmatic new student at her University named Shoichi. She remembers his face from when he saved her younger Sis from a band of rapists in the past. However, rumors abound that Shoichi i s ing with his teachers, and has hidden agenda to steal test answers from the school and her mother. When Shoichi's plan goes into motion, Kotono, her Sis, and her mother will all be in on the action.