Why does the lonely city of mirrors have memories?

Author settings. According to the query, Tencent Video official website shows.

1. The crystal in Lonely City of Mirrors has a memory because the author enriched the crystal memory when he created it.

2. The film Lonely City in the Mirror is adapted from Mizuki Tsujimura's novel of the same name. It tells the story of a girl who locked herself at home because of psychological trauma, and gradually came out of the shadow in the process of getting along with a mysterious girl wearing a wolf mask and a junior high school student who was selected like herself.

3. Lonely City in the Mirror is an animated film produced by A, 1pictures, directed by Keiichi Hara, with Miho Maruo as the screenwriter and Zhenyami and Tomomi Kitamura as the main voices. It was released in Japan on February 23rd, 2022.