If you loved Tokyo Train Girls: Private Lessons, try The Temptation of Kimono
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 Tadashi Kyouya, and they both carry the tender mood tag, and they sit in Drama / Romance territory. If that's the register that drew you to Tokyo Train Girls: Private Lessons, the second film will land in a comparable space — through a different lens.
tender
What The Temptation of Kimono is
Apparently someone thought a romantic drama needed more trauma. Mikage moves in with her fiancé's parents before the wedding. It all goes predictably downhill from there.

