My Prince Charming [On hiatus]

Hello!! I'm the author of "One Day, My Boyfriend Started Looking Cool"...!! I've taken on the challenge of fantasy...!! Please enjoy it, even if it's lacking and incomplete! The female protagonist discovers a fairy tale book while unpacking. Drawn in, she opens it and discovers a strange rule. [Rules] 1. If a fairy tale person lives in the human world for more than two years, they die. 2. If a human lives in Fairy Tale Land for more than five years, they die. 3. One year in Fairy Tale Land is