Shunsuke Fujii was a bullied middle school student. He took his own life. A letter left behind referred to his classmate Yu Sanada as a friend. Sayuri Nakagawa was a girl that Shunsuke liked. Her birthday is the same day as the day Shunsuke commited suicide. Shunsuke's father can not forgive Shunsuke’s classmates and his mother's life has been destroyed by his death. They have spent 20 years of their life carrying their own cross since Shunsuke Fujii's death.
小出恵介
as Yu Sanada
富田靖子
as Shunsuke’s mother
木村文乃
as Sayuri Nakagawa
永瀬正敏
as Shunsuke’s father