@NP-3228 considering he's starting out as a low level manager, or more like he programs robots (the imps) to do all the garbage disposal, he's actually more in line with... a low level manager, like at least a team lead or a shift manager, or a specialist. Should give nice benefits regardless, even if the work is intense.
That aside, I feel like I'm reading propaganda for Japanese black companies. But I'm a glutton for trying to feel good so I'll read anyway.
Also, is it power harassment if familiars are lowkey secretaries but your secretary's sustenance is your juice because she's a succubus? Basically, if Monica Lewinsky was a succubus, would America still have had to hear about Bill Clinton got a blowjob?
Honestly, it’s probably somewhat better to compare the job to a combination of sewer inspector and public lands manager.
We know Franz graduated from some sort of higher education. Garbage collectors in real life earn on average $16 per hour, and that’s the basic entry level pay with no real prior experience needed. Sewer inspectors make on average $60k per year in the U.S., which more reflects the pay we see here in the manga.
If that's the only qualifications to being isekai then Star Wars would also be one.
the MC being unfulfilled until becoming aware of a 'new world' is basically the standard hero's journey template.