Overview

Kenji and his mother Ayumi live together in a single-parent household, and their mother's younger sister Kana comes to their house. Kenji was excited when his aunt, who used to play with Kana and take baths with her, came back home after a long time and was as beautiful as ever. That night, when Kenji was taking a bath, an old lady came in and said, ``I'm going to wash you.''