My Previous Job was as a Hero. – A Former Hero, Rejected by Both the Princess and His Girlfriend, Is Asked by the Saint to Fight Against the Demon Tribe. Well, as a Humanities College Student, I’ll Show Them What I Can Do Chapter v17 Discussion

If you don't mind such jokes as "He saved my life and let me stay at his place" -> "let's call the cops on him", or "I'm paying for the clothes you need. Did you get enough underwear too?" -> "you're a pe*vert"

Then sure, this novel might be fun for you. I personally don't like it when the protagonist is treated horribly by people who should be his friend or relying on him, and this is all somehow made worse based on his experiences before the start of the novel. I don't like authors who use it for humor, at least when the protagonist isn't an awful person.

Other than that, looks like a normal OP protagonist battle fantasy harem romcom w/e. That part doesn't seem bad at all, so like I said, if you don't mind the typical jp ecchi harem romcom style of humor, don't mind my rating.