The Strongest Anger Upgrade System

Lin Chen, a diaosi high school student, woke up with an anger upgrade system. Hit me? I upgraded my school uniform to an iron jersey. Better than physique? I upgraded the steamed buns, and I had a lot of power to finish them. Better than wife? My wife is as beautiful as a fairy, how do you compare with me? Working hard to learn skills? Sorry, I can accidentally gain skills by upgrading a beer. Rich second generation? Campus Overlord? But it’s the one I accumulate anger…