First air date: Oct 04, 2025
Episode duration: 00h 24m
Rating: (8.1) based on 9 votes
Status: In production
Next episode: S01E05 - Nov 1, 2025
Seasons: 1
Episodes: 12
Starring: Ayumu Murase, Hiroki Touchi, Umeka Shouji, Anna Nagase, Yuuki Shin
Genre: Animation, Action & Adventure, Mystery, Drama

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.

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