Plarail in "Bandai Kaname wa Asobitai"

Googled "plarail manga" and found this:
https://mangakakalot.com/chapter/bandai_...chapter_13
Be aware it has some fanservice.

VERY interesting, but I'm really not sure what its about? However -

Ha! page 12 "Heart Thumping Mountain". I rest my case.............
https://www.blueplastictracks.com/showth...3#pid44993

Seems to be a lot of mansplaining going on in this manga!