Mary, the aunt of Kenichi—who had been suffering from bullying at school and returning home depressed every day—comes to visit. Ever since childhood, when she used to bathe him, Kenichi has harbored quiet feelings for Mary, but his emotional wounds remain unhealed. Concerned for him, Mary decides one day to join him during bath time. In the warm, soothing atmosphere, she gently comforts Kenichi’s heart. In the quiet intimacy of the moment, their relationship slowly begins to change.