The Time Machine Bus only has one round trip left.Ichiro (played by Sadao Abe) finally decided to return to the Showa era and steadily organize his affairs in the Reiwa era.

Ichiro decided to use the last time to sneak away to the depressed Nagisa (played by Nakazasa), and said goodbye to Inoue (played by Hiroki Miyake), Yuzu (played by Arata Furuta), Akitsu (played by Hayato Isomura)

Back in the Showa era, Ichiro met Junko (played by Yumi Kawai), who had become a student who took the entrance exam seriously.However, it is not just Junko who has changed. Ichiro, who has become accustomed to the Reiwa era, has also renewed his inner self.

Ichiro, who is full of Showa spirit, has doubts about the current situation of junior high school and thinks about his future...!