An Zihao did not arrive too early nor too late. He arrived just in time to see the woman slap Chen Xingyan.
He had promised that he wasn't going to help her, but, seeing Chen Xingyan being humiliated in such a way, his right leg disobediently took a step forward. However, after one step, he quickly retreated. He couldn't waste a great opportunity for Chen Xingyan to grow by being too overprotective.
Because of Chen Xingyan's nimble skills, the director had not hired a stunt double for her role. But, after he replaced her, he specifically found one. So, contrary to what Chen Xingyan had said, the woman had a stunt double to help her.
The woman looked at Chen Xingyan with ridicule. She seemed to think that she was stupid and naive, "The person without a stunt double is you, not me."
So, Chen Xingyan watched as the woman focused on looking good on screen, while the stunt double took care of all the action scenes.
It wasn't fair!