Hou Yuchun's words shocked Mo Fei more than they shocked Dongfang Yi Ren.
She likes little monkeys, so she knows more about Hou Yuchun's hatred for her father.
What's more, Mo Yunkong really did the inferior work. He betrayed Hou Wanqian and chased Hou Yuchun, completely ignoring her feelings and situation as a daughter, and even left her to run alone when in danger.
This makes Murphy wonder if she is his own daughter
She hated Mo Yunkong so much, not to mention Hou Yuchun, whose family was destroyed and people died.
Hou Yuchun also swore several times before her that he would pull Mo Yunkong out of his bones and muscles