As of chapter 3, this seems to be leading up to some sort of payoff as of chapter 15ish maybe some big plot twist or scheme. Jumping straight into things starting on chapter 1 was jarring but being completely honest most of that starting isekai stuff was kinda boring, like a tutorial in a game genre I've played a ton of: just mash through the tutorial to get to the actual thing. When I think of it like that, I can already piece the story together well enough to not care that it was skipped over, but I'll type it out for those that might not be able to, please choose one in each category:
(Protagonist) Regular joe schmoe guy; loser neet; popular guy
(Event) Dies due in unusual circumstances; gets summoned by otherworldly entity; gets sent over by someone from his world; literally falls into a hole that leads to the plot; reincarnates as a resident of the new world
(Ability) Entity randomly or deliberately gives this OP ability; protag gets ability after arriving in some "inheritance" ritual from some dead/living OP dude; just randomly has the ability the moment he arrived in the world
(Current Objective) sAvE tEh wUrLd; get harem and mad puss; whatever he wants; not die
Summary: at this point in the isekai genre, the initiating factor that gets the plot rolling is really getting repetitive and, for me, just slows down the story and makes me wade through the same opening 5-10 chapters of """character development""" (OP ability learning) before the main conflict starts. It was a jarring, yet actually pleasant first few chapters as things are starting right away. Granted it's only chapter 3 so it still has plenty of time to become a dumpster fire, but at least I don't have to read 15 chapters to realize the story is definitely going nowhere. If it was actually important to the story, it would have been in it to begin with. Who knows? It might be a flashback or some BS, but clearly it's not important to the story right now
ATTENTION: this comes from a guy who reads way too many isekai. I get it, this is not friendly to people new to isekai genres, but tbh with how many of the damn things there are, it's not likely to somehow find its way into a straight newcomer. If it does, I'm sorry that you're not a fan, isekai manga's are not like this typically: this is an exception, not the standard. If you want recommendations to good ones, just ask and you shall receive.
I have garbage taste.