RAIL WARS!

The "dream railway paradise entertainment" story is set in a parallel world where Japan did not privatize its national railways. Naohito Takayama is an ordinary high school boy who dreams of a comfortable future working for the top-rated Japanese National Railways. He is assigned as a trainee in the Railways Security Force full of odd characters such as Sakurai, a troublemaker who hates men. On top of that, an extremist group called "RJ" plots to privatize the Japanese National Railways. (Source: Anime News Network) — Description from AniList community (anilist.co).