, [FFF] Rail Wars! - 04 [AA4444B7]_mkv_snapshot_10_0.jpg
It's about asses.
In actuality, it's pretty much just a harem set around people doing things somewhat related to trains, and the MC is a train enthusiast.
I didn't know what to expect from the show, and after watching the first episode, I thought it'd be horrendous. But the last few eps have been okay, if you don't mind those harem elements and blatant fan service.