Synopsis

A gender-reversed retelling of the original series. The tale unfolds in a Showa-era retro shopping street in Shonan, where high school girl Chiyomi and local basketball star Minami-kun, who have been like siblings since childhood, finally become a couple. However, their happiness is short-lived as Minami-kun suddenly shrinks to a height of just 15 cm, fitting in the palm of a hand. Consequently, Chiyomi and Minami-kun start living together.