@Savarizki I will never understand why people get so hung up on a MC who's OP.
Ive grew up on nothing but animes and mangas full of betamales, tho I'm a 90's dude, maybe todays kids want to see the mc to struggle for the heck of it.
For me I think it's far more interesting what a man with huge power does than a weak one seeking power. Cause it takes a long time to progress and it might not even be worth the time invested.
But with an OP MC you are presented with the whole deal. The first few chapters already tell you if this is worth your time or not. Unless the author gets lazy after a while, like in (Lonely Attack on the Different World) it's up to the author to write quality sophisticated plot and character bio.
BTW this does not feel slice of like AT ALL. Not one iota. That slice of life tag should be removed.