On a rainy night, my sister Xia Qingyan fell and died mysteriously, and the police determined that she had committed suicide. All that was left to Xia Yinong was a cryptic text message and an ancient brass key.
Following the clues, she found the mysterious visual resonator Xie Xuan, but was forced to be involved in the dispute of a secret organization that existed in the mirror dimension - the "Mirror Gallery".
The broken mirror showed the late sister's warning, and the friends around her had their own hidden agendas. When urban legends shine into reality, the reflection in the mirror begins to develop autonomous consciousness...
Holding the "Delimitation Key" in hand and armed with the power of the awakened "Moonlight", Xia Yinong embarks on a path to explore the truth. Not only does she have to face erosion and pursuit from the mirror dimension, but she also has to uncover the ultimate secret behind her sister's death that concerns the survival of the two worlds.
In front of this huge mirror of fate, what is reflected is redemption or deeper sinking?