It seems Lixing knew he was in the wrong. When Su Cheng beat him up, he mainly tried dodging and protecting his head and face as much as possible.
But it was useless. Su Cheng's rage erupted like a geyser; he didn't care about the maxim "do not hit the face." If not for that last bit of reason controlling him, he probably would have beaten Lixing to death.
His feelings were understandable; after all, anyone who saw someone treat their mother that way would be furious, and it was already merciful not to attack with a knife.
When Su Cheng's rage finally subsided temporarily, he pointed at Lixing, who was shivering on the ground, and said, "If I ever see you stir up trouble between Huangpu Group and He Group again, I will beat you every time I catch you. And I have evidence of you... being inappropriate with my mother. If you dare to mess around, I will make sure you regret it."
Lixing didn't dare say anything and could only agree repeatedly, slinking away.