Mirei, who divorced her husband 10 years ago, has raised Taichi on her own. When Taichi was in middle school, Mirei inherited her parents' estate and opened a local cuisine restaurant. The restaurant became a huge hit due to the boom, and Mirei moved to Tokyo, leaving Taichi behind. Upon hearing that Mirei will be returning home tomorrow, Taichi reserved a hot spring inn and headed to the station to welcome her.