When the piano player enters the room, the two men are interrupted by the sound of a single note. It is the birthday song of the man who has written it. The piano player asks the man how he knows the song, and the man answers that he has written the song in a file in his room. He then accuses the man of plagiarizing the song and says that the man is a liar. The man says that he did not plagiarize the song because he has been working on the song for a long time to prepare for a competition. He says that if the man would apologize, he would be able to prove that he wrote the song. He also reminds the man that he accused Luoan in the competition back in high school, and that he had told the man to use his master bedroom that night. He asks why the man has not changed at all, and he says that it is all his plan from the beginning. He adds that he heard the man used "infiltrators" to get into the house, so he guesses that the rumor is true. The two men agree that the song is their last confession for this love.