The next day, Cai-dong meets up with sai-sai, and they discuss the piano teacher's recent comments on saisai's performance. Cai says that he's happy to see that sai is playing well, and that he admires the young pianist's resolve to challenge himself to a difficult piece of music. Worried that his words might affect his performance, Cai asks sai if he should encourage the teacher or tell the truth, and sai replies that it's better to have confidence in one's own abilities than to encourage someone else's. He says that bai-dong doesn't make mistakes as much as he does when he makes mistakes, and he thinks that his performance of the piece is beginning to connect with the listener. Aww, that's a big change from the old days, when he would play the piano like he was fighting with himself. Cai asks how sai can tell that he is in love with someone, and Cai says he can't really express his feelings, but he does know that he needs someone to express his emotions to. Ooh, sounds like you're in love, right? It's hard to say, but Cai says this is because he always hides the feelings he needs inside, and sometimes he just feels cold. He's playing the piece because it fits his mood right now, and because it reminds him of his feelings. Cai wonders why sai plays so hard, and asks why he is playing so hard when he is creating so much joy and hope. Cai chimes in that he feels like he is "inprisoned" in his own limitations, but sai says he'll play the piece for Cai--he's chosen it for him, and will play it for Cai when he masters the piece