If you loved Eternal 831, try Eden of The East Compilation: Air Communication
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 both carry the slow burn mood tag, and they sit in 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 Eden of The East Compilation: Air Communication is
Washington DC, cherry blossom season, a cell phone. Amnesiac Saki Morimi meets a naked young man holding a gun and a phone loaded with billions in digital cash. Unexpected consequences ensue when he's chosen as one of twelve individuals secretly tasked with saving Japan. Kenji Kamiyama's series earns its feature-length victory lap.

