Four-year-old Kun struggles with jealousy after his newborn sister, Mirai, begins receiving most of his family’s attention. Retreating to the garden, he encounters Mirai as a teenager from the future and embarks on extraordinary journeys across his family’s past, gradually discovering new perspectives on love, belonging and what it means to become an older brother.

Cast: Moka Kamishiraishi, Haru Kuroki, Gen Hoshino, Kumiko Aso, Mitsuo Yoshihara, Yoshiko Miyazaki