Alright let's not just speed past that the hamsters name is rations lmfao
It's a degu, not a hamster. According to wikigod, it's from Chile. The photos look a bit chinchilla-ish to me. Did you know the chinchilla is a critically endangered species? I did not. I thought they just bit really, really hard.
The first part of the chapter seemed to me an insanely close copy to New Game, with the more adult figures. I might have been influenced by the gothic maid on the cover, though. I saw the management people as Yagami and Rin; one has a soft heart but major tsundere issues and the other is kind and stays out of the way unless needed. By the end, I felt the story had sufficiently diverged to ditch the comparisons.
It's true that settings come with a cast of characters in manga, or any high-churn creative field. You can read 5 Harlequin romances and have read every one that's ever been written (I do not recommend doing so or your head will explode) and we all know the giant-[insert creature/natural-/alien-disaster here]-boy-gets-girl B-grade movies that turn up every other week. It's the only way for an author to really keep up with the release pace they need to make any decent money.
I prefer New Game at this point, but I like moe subtext stuff. In my own work, I'm always in the aaaaaaangst age-gap area, so fluff is a nice lunch break.
Also, work mom. I was one of these for many years and didn't even know there was a term. Of course, I worked with actual teenagers, and am a mom, so it fit.