He doesn't even have to try; on his first day of school, the principal calls him to his office and begs him to literally fight for the school's honour or they risk being forced to submit to heir rivals.
We're talking roving gangs of black criminals, white people will literally step aside and let them rape white women. Fortunately there's a virtuous Chinese guy around to save them. Also Kung Fu is apparently unbeatable, every other martial art is trash compared to it.
Every business decision he makes turns out to be brilliant. While negotiating a deal, he can beat up another guy for making a "lewd" comment, and the guy will apologize and give him what he wants.
He had the owner of MC's body killed because he wanted to get the highest spot in class and go to a top university. It's horrible but understandable. Now he just can't let the MC go, and won't accept that the MC is stronger/smarter than him, even though it doesn't really affect him at this point. He's also been saved by the MC twice, but that just makes him want to kill him more. He also wants to kill his cousin because he might be better than him, and for some reason the majority of his family side with him to assassinate the cousin's half of the family.
At one point he is upgrading his supermarket (another huge cheat that is custom made for him, and has nothing to do with the actual supermarket itself. He requires these rare "black balls" that you get from killing class 2 zombies; he is given one and finds that each ball gives a 10% upgrade. Later, he happens to come across a group of people, 9 of whom have black balls that they have no use for an basically give them away for free.