Year 10 of the Taishō era. The life of Tamahiko Shima, who lives in exile in the country after having lost everything, changes completely with the arrival of the young and innocent Yuzuki.

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.