C221 Shameless
Han Zhuang had previously humiliated him, and he had even let the taekwondo club gang up on him. Because of this, he wasn't going to let Han Zhuang off the hook easily.
There was also another significant reason: Gao Mu was making it clear to everyone that he was not someone to be taken lightly.
After this confrontation, it was certain that some would think twice before messing with Gao Mu again