If you loved Death Billiards, try Harmonie
A bridge between a film you've already seen and one most people haven't. Harmonie has roughly 3.8× fewer votes than Death Billiards — it's a deeper cut, not a mainstream recommendation. Here's what they share, and what the second one does that the first one doesn't.
What they share
Theyboth carry the bittersweet, foreign gem mood tags, and they sit in Animation / Drama territory. If that's the register that drew you to Death Billiards, the second film will land in a comparable space — through a different lens.
bittersweetforeign gem
What Harmonie is
The Breakfast Club if anime. A shy boy breaks from his usual friends and social set to get closer to a beautiful, popular girl. The animation has a painterly look, and the story finds a bittersweet quality in adolescent yearning.

