

7.524 minSeason 1 • Episode 12
LatestSanta fights Oshibu before the students. The headmaster thrives on cheers, but Santa regains power by revealing his truth. The duel peaks on the roof.
In near-future Japan with ultra-low birthrates, children are treasured but monitored. Santa is banned as dangerous. One snowy December 25th, middle-schooler Kazushige Sanda, descendant of Santa, is attacked by classmate Fuyumura who wants him to find her missing friend, Ono. "Santa, please find my friend." To protect children from adults, Sanda decides to become Santa and fight the adults.
Direction
Balances absurd premise with genuine melancholy — no easy feat.
Cinematography
Snowy urban decay never looked this gorgeous and sad.
Writing
Fuyumura's 'Santa, please find my friend' will live rent-free in your head.
Trivia, insights & behind the scenes
The ultra-low birthrate premise mirrors real Japanese demographic crisis, making the 'treasured but monitored' children uncomfortably plausible.
Ayumu Murase (Sanda) also voiced Shoyo Hinata in Haikyuu — this role weaponizes that same earnest energy against adult corruption.