If you loved My Happy Marriage, try 1st Kiss
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 Ayuko Tsukahara, and they both carry the bittersweet, tender mood tags, and they sit in Drama / Fantasy / Romance territory. If that's the register that drew you to My Happy Marriage, the second film will land in a comparable space — through a different lens.
bittersweettender
What 1st Kiss is
Time travel is the answer to every marriage problem, apparently. A woman travels back to the moment before her first meeting with her late husband. It predictably gets sentimental from there.

