[4] He says that films in the future are just a few minutes long, so he, a cinema affectionado, went back to 2020 to see the only lost entry in renowned director Barefoot's filmography: Samurai Spring.

However, when a supporting actress faints on set, Barefoot's team helps Karin out by asking Blue Hawaii to play the part.

Meanwhile, Blue Hawaii and Kickboard learn from Rintaro's friend that they must delete the film after the showing in order to prevent a time paradox.

At the day of the screening of both the rom-com and the Samurai Spring as a double feature, Rintaro informs Barefoot that he is leaving back to the future straight after the film's ending.

She stops the screening before the final scene and commands the team to play it live at the improvised cinema in the gym hall, taking the role of the main character's enemy.