Living together as a happy little family of three with his wife's mother, Eri. While his wife, Hitomi, is out at a reunion, Satoshi, fueled by alcohol, confesses to Eri that she reminds him of his first love, someone he's been secretly smitten with since their first meeting. Alone in the room, Eri, feeling lonely since her husband's passing, gradually opens herself up to Satoshi...