Both are great workplace dramas that made me motivated for work (after crying buckets). Juuhan Shuttai is not the kind of masterpiece that Misaeng is but it's on the way there.
No romance, just hints.

Very different films at first glance, though one reminds me of the other. Both of them are not mainstream, blue spring being very violent and kirishima messing with the story line a bit. What they have in common is the portrayal of young people being locked up in a neat and little world called high school and looking to the outside world, thinking, what the heck am I gonna do. What is it that I want to do. And does it even matter.
In addition, both have terrific soundtrack.

suspense, fragile relationships, creeps and murder. Both dramas are quite short; Shotenin Michiru is better imo.