Takao Sasaki

昭和55年、ある廃ビルで、質屋の店主が殺される事件が発生。決定的な証拠が不十分のまま、警察の捜査は打ち切られるが、担当刑事の笹垣は、ガス中毒死をとげた容疑者、西本文代の10歳の娘である雪穂の妙に大人びた態度と、被害者の息子でどこか暗い目をした10歳の少年・亮司の姿が脳裏に焼き付き、妙な割り切れなさを覚える。それから歳月は流れ、大人に成長した雪穂と亮司の周囲で、再び不可解な事件が続発するようになる。

High school student Mariko sings in the choir at the all-girls school she attends, and her biggest dream right now is to go to a music college. One day on her way home from school, she accidentally drops her bookbag into the sea. A man jumps into the water and recovers the bag for her, but all of her score sheets have been ruined. From that day on, Mariko’s new acquaintance becomes her bodyguard, walking her home everyday. But for some reason, he refuses to tell her his name.