If you loved Leave it to Kero!, try Piano Forest
Un pont entre un film que tu as déjà vu et un que peu de gens ont croisé. Voici ce qu'ils partagent, et ce que le second fait que le premier ne fait pas.
Ce qu'ils partagent
Both films are directed by Masayuki Kojima, and they both carry the cozy mood tag, and they sit in Animation territory. If that's the register that drew you to Leave it to Kero!, the second film will land in a comparable space — through a different lens.
cozy
What Piano Forest is
Buster Keaton meets Studio Ghibli. A bullied transfer student stumbles onto a broken piano in the woods and meets Kai, the only kid who can coax sound from it. The piano teaches him music and rebellion.

