The mansion becomes more lively and Tamako and Yuzuki's bonds improve thanks to their shared passion for the famous singer Kotori Shiratori. Later, Yuzuki falls ill and collapses from working too hard, so Tamako and Tamahiko nurse her.

The famous singer Kotori and his brother Hakaru arrive at Tamahiko's villa. Kotori tells Yuzuki that she is working on a new song, but that she needs some advice about love to better communicate the message. Kotori also talks about how Hakaru used to love playing and singing music, but he had to give up after falling ill.

An injured Yuzuki reflects on some moments in her life since she met Tamahiko and laments her inability to express her feelings. She wishes she could survive and meet Tamahiko again.