I Am a Good Person Who Specializes in Punishing Evil People

In fact, I am not a good person, just an ordinary student. But doing good deeds makes me more handsome, smarter, more charming, more... Wouldn't I be a fool if I didn't? Punishing evil people will make me fight, curse, cheat, throw tricks... All kinds of skills will improve rapidly, how can I not work hard? Everything started from the moment a little bird pulled bird droppings onto my head... This novel and its characters are purely fictitious. Any similarity is purely coincidental and should not be imitated.