Rei works part-time at a patisserie with apple pies being her forte. Her love and zeal for her work gains the manager's respect and the latter recommends her for a promotion to a full-time employee. In the process of getting all the relevant documents ready for processing at the company's headquarters, she discovers to her shock, that her name is not on the family registry.

Rei collapses under the shock of discovering that without her name in the family registry, she is technically a nonentity. She desperately asks the help of the staff at the City Office, especially Kiyama, who has taken a keen interest in her case and is thinking of ways to help her. Meanwhile, an elderly man comes to the patisserie where Rei works and seems to have taken an interest in her. Rei's mom, Yoko, finally agrees to meet Rei at the City Office to get her registered.

Rei and the staff at the City Office wait in vain for Rei's mom, Yoko, to arrive. Rei's numerous call to Yoko's phone goes unanswered. After returning home, a newscaster on the television announces the discovery of the body of a woman. This frightens Rei and she tries to phone Yoko again, which was answered by a police officer who informs her that Yoko's phone was left on a bus. However, Yoko herself is nowhere to be found. Later, Kiyama gets a call from Yoko.

The city's free paper, City Watcher visits Patisserie Charlotte to interview Rei and Igawa. The paper features Rei's story with her mom, causing her apple pie to surge in popularity. Kusano Kota comes to the store as promised to try the apple pie made by Ms. Apple Pie. Mao learns the truth of her family, while Natsume tries to fix things with his granddaughters. In the end, Yoko returns with the required documents for Rei's family registry.

Rei is finally able to proceed with her registry after her mom's return. She was asked by her manager to create a unique product as the following month's recommended product. She decides on making tiramisu after Kiyama told her about it. Rei gains the inspiration to improve her tiramisu after receiving an apple-shaped glass charm from a mysterious man.