This is definitely a jab at the manga where the girl's Kyoto dialect keeps creating misunderstanding.
The manga for those who wonder: https://mangadex.org/title/ead3f958-0d01-4c1f-b605-620eacb8ead0/boku-no-ikezu-na-konyakusha
I don't think this MC is dense at all, last chapter indicate that he is aware of it, but he intentionally choose to avoid it, probably due to his concern for societal class difference.
The fuck you mean "you have no idea what to do"? You have entire legion of dragons that you can request help of, just call them up, say "some bitches mess with my girl", and let them wreck harvock.