At the same time, everything goes quite easy for him, he gets a lover pretty easily, a yandere step sister who slept with him (did they have sex ? It wasnt really clear), a MC who doesnt question his morals too much and get things done, a harem and kinda no obligations for his girlfriend...
But it feels like everything goes a bit too rapidly, without taking the time to establish itself
Why does adventurers create relationships so quickly? I dont mind it but it can get explained and normalized.
Why is there gacha and modern systems in the dungeon with a seemingly natural design (this kind of things always puts me off)
The worldbuilding of the story seem to want us to "already know everything from the start" and while i dont like a wall of text like in too many mangas, there is ways to explain your world without them, it's what a good author should do
I'd give this one 5/10. It's not bad, it's not good, it's kinda average, without bringing big interest to me