Kang Minji is a fan of fantasy books and movies. She didn't miss any day to go to the public library to read all the fantasy books they have there. 

One day, Minji went to the public library together with her best friend, Yeonhee for their review for the upcoming university entrance exams. During her silent review, a sparkling butterfly landed in front of her and got her attention. She followed it and bring her to the archive room of the library where the old books were stored. The butterfly landed on a sparkling book entitled "The nine guardians of tree of life."

As Minji finishes the first paragraph, it lit up so bright and the next thing Minji know is she's not longer in the library.

Hello! This is my rewritten version for my uploaded and unfinished story The Guardians, so I revised anything from the start but I want to continue this as a fantasy au. So for the readers of the first version, thank you for waiting >///<