Three days later, Yutong chooses a princess theme for his birthday party. Everyone will dress up in Yutong's custom-made clothes, and they'll have a knock-knock competition to see who can win the knock-chuan'er's hand in the game. Ren chuan is busy preparing for the exam, but he doesn't want to waste any more time, so he tells everyone that he's going to have a party in his ward's children's room. He's not worried about his own health, though, because he knows that jianghuan will be furious if he learns that he and Yutong didn't match in the bone marrow test. Ren chimes in that the match is over, and that he still needs to talk to Yutong about specific issues. He tells him to calm down first, and then he can explain what's wrong.