If you loved Eternal 831, try Napping Princess
A bridge between a film you've already seen and one most people haven't. Here's what they share, and what the second one does that the first one doesn't.
What they share
Both films are directed by Kenji Kamiyama, and they sit in Adventure / Animation / Drama / Science Fiction territory. If that's the register that drew you to Eternal 831, the second film will land in a comparable space — through a different lens.
What Napping Princess is
Spirited Away if directed by Michael Bay. A young woman dozes off and enters a dream world of robots and magic that may hold the key to her family's past. This anime feature floats between reality and fantasy with a light touch.

