MC seriously needs to create a shield bubble: No sound incomming, no jerks may enter. Just enter the guild, pick up quests, receive rewards and leave again. Well, only the receptionist girl would be ok to speak since she looks somewhat good.
Being a serious story while having insane elements around is perfectly possible though. His friends seem to be having a serious story after all.
He just took the path less traveled which is clearly less safe and leads to stranger places. If anything i blame the Isekai part for the stuff that seems to come directly from our world and most of these adventurers kinks. They came in contact with Isekai protags the most after all and over time they learn't the ways of perverts.
I mean Jojo's is damn serious but some of the stuff in that is crazy. There are also other stories that work on insane logic but the logic checks out overall.
Am I the only who think the manga is trying too hard? Got a couple of good giggles and laughs in the first few chapters but this chapter just made me go "Okay, this is going overboard now."