Meng Lingxi, the fifth princess of the Mengxi Cat Realm, wears a royal golden chain with a Yin-Yang spirit core ruby around her neck. The chain is wrapped with ancient runes and studded with moon crystals. It is the key to guarding the secret realm. She was chased by her compatriots Meng Youying and Meng Lingshuang, who coveted the power of spiritual cores and gemstones to practice magic in an attempt to break the evil seal of the forbidden land. While on the run, Meng Lingxi accidentally exchanged souls with a human girl Wen Jingtian, and ended up living in the world.
Meng Lingshuang used magic power to transform into a human form and stir up the relationship between Meng Lingxi and Gu Xingchen, while Meng Youying plundered gems and polluted the Maojing mineral veins. Meng Lingxi was adapting to her human identity while protecting her spiritual core. Gu Xingchen went from misunderstanding to awakening and decided to stand by her side. Everyone needs to solve the mystery of the evil stone, fight against the ancient threat, and compose a fantasy chapter about protection, redemption and bondage between the two worlds.
