七夜物語 (Series) favorite_border

[DeepL Translation - needs review] Introduction to Volume 1: Sayo, a fourth grader, lives with her mother. One day, she comes across a mysterious book titled "Seven Nights" in the library and wanders into the world of night with her classmate, Tomoda-kun. What will become of their adventure through the seven nights?

(Translator: DeepL)