Mugen Train: I'm Really Just a Conductor

I am a conductor with a very unpopular attitude. The passengers all liked to mess around, which made me get complained by the boss. She was punished and had to work as a nanny, so Horror World came to her aid. I just want to pay off my debts and go back to my hometown, but everything doesn't go as I wish. Fed up with 996? Fed up with taking time off? Fed up with unreasonable customers? Then let's trick the leaders and customers to death together. This book is also called: I work as a nanny in an infinite world. No evil ghost is as scary as me. You don't think I'm a good person, do you? This novel and its characters are purely fictitious. Any similarity is purely coincidental and should not be imitated.