Hikaru Good suggestion, but I have read most of those with the tags: hiding true abilities and sudden strength gain. Lack of common sense is usually one that is with JP novels. They are too cringe and platonic for my taste. Slice of life is good, but that is it. There is nothing too good, or too bad about it. Sharp-tongued characters get absolutely nowhere with any OPness. Like the novel, Against the Gods. It usually goes:
MC: "bla bla bla, roasted!"
Villian: Bla bla bla, couldn't respond!"
MC:"HAHAHAHA, suck my coc!"
Villian:"Fuc this why am I arguing? I could have killed him 24 times if I attacked!"
MC:" Reinforcement plot armour b!tch!"
And that is how it goes. It goes nowhere. The villains will always be like: WTF? Why don't I just attack? Unless there is a usual modern world with just being a lawyer. But lawyers are only verbally good, not physically. The strength I am talking about is kind of like an all-rounder. LoHP is also OP but still gradual with strength gains, he can bearly be counted as an OP protagonist. I am talking about the strength that comes as OPness. The strength has to be constant through the series. He can't just use the power of Plot Armour. The power of strength and control!