From what i understood
He is the laughingstock of the whole town because he always gets bullied but never fights back and they think that he is scared to do so
But in reality he is actually a very strong person that could kill a very well trained man with no problem (aka he is op? )
Anyways the only reason he didn't fight back whenever they bullied him because (the manga said) he had a good personality
But when he found out they started harassing a woman he decided to protect her and use his powers(not sure) cuz of his good personality
You can see that when he killed the man he said that he could endure the fact that they bully him but he won't do so if he sees someone bully a weak women
I just realized that you posted that comment in 2020-
can someone explain to me what just happened? is the main character blind? is he bloodthirsty? I- wtf just happened