聖クロス女学院物語 (Series) favorite_border

[DeepL Translation - needs review] Yona has just entered Holy Cross Female Academy. She is supposed to join the art club with her best friend Nana, but Hanane, a beautiful girl with an eye patch, forcefully invites her to join the "Mystery Club," which is a very strange club!　She said, "You want to know who your sister is, don't you? But...giggles...what should I do?　From intermediate level of elementary school.

(Translator: DeepL)