Hakaru and Kotori (S01E09)

Renowned singer Kotori and his brother Hakaru make their way to Tamahiko's villa. Kotori confides in Yuzuki that she's currently crafting a new song but feels she needs insight into love to convey her message more effectively. She reminisces about how Hakaru once enjoyed playing and singing music, only to abandon it after his health took a turn for the worse.