Spring of 1922 arrives and Tamahiko continues to get used to Yuzuki. Tamahiko receives a letter from her father, Tamayoshi, announcing that two of Tamahiko's siblings have been given marriage proposals and that, as a result, he has made a shocking decision that affects Tamahiko.

Tamahiko's sister, Tamako, arrives to settle in the mansion with her brother and Yuzuki, but she still shows a cold demeanor towards both of them. This causes Tamahiko's mood to sink again, until Yuzuki takes him for a walk to appreciate the beauty of the natural landscape around the house.

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.

Tamako move to her uncle's house in Kobe to begin her studies in medicine. Later that day, Tamahiko and Yuzuki go shopping at the village market where they draw the attention of young Ryo Atsumi. At night, Yuzuki gives Tamahiko a birthday present.

Tamako finds out that Tamahiko wants to go back to school, so she puts him in touch with his uncle Tamasuke, who decides to help him. Meanwhile, Yuzuki learns about her favorite singer Kotori Shiratori coming to town for a performance, so Tamahiko decides to take a break from his studies for the remedial exam to go with Yuzuki and the local kids.

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.

Yuzuki receives a letter from her old friend and classmate, Midori, announcing that she is pregnant and getting married. Since they may not get a chance to meet again, Midori ask Yuzuki to pay her a visit. Yuzuki finally decides to go to Tokyo to meet Midori, tasking Ryo with looking after Tamahiko.