Once upon a time there was a monster village

"Once upon a time there was a monster village, and in the monster village there was a man..."
Are the urban legends history or prophecies?
On her tenth birthday, Jiang Yuan traveled to the world of monsters with her cat. When the monster village in the book was no longer just a few words recorded on paper, and when she was forced to accept her chosen fate, where should she go?
This man and this cat finally stepped into this fantasy world and started their adventure...