I read the synopsis for your other two games, and was a tiny bit surprised to find that this one isn't about a janitor. :p
Interesting collection though, would like to try them out sometime.
Yeah, the janitor (Rika) is the protagonist of the series, but this first "episode" has a different narrator. :) Thanks for the interest!
I love the idea of it, you don't see a janitor protag every day. XD