Ke Li, whose emotions were about to burst, finally snapped when he heard his nemesis' taunts. Thus, he fought against him. After all, he was already fired so what would he be afraid of his nemesis reporting him that he injured him? He even almost killed him before, didn't he? Although this was the cause of his dismissal now, but Ke Li couldn't feel even better.
So, after breaking some ribs of his nemesis, he immediately picked up the pieces of the bracelet that Mu An gifted him. But, he knows that he can't be reconciled even if he felt better that he lost that shitty job. Especially after he knows that Mu An will enter the research laboratory in the future. If he will be fired, then he won't be able to know what will happen to Mu An in the research laboratory. He has to protect Mu An! Thus, he had to find another way to return to this research laboratory!