Wind and Snow with Night Crystals

She is an ordinary high school student but has a mysterious identity that is unknown to everyone. He is a young policeman who has just entered the industry but has a disappeared memory. Is their encounter a coincidence or destiny? The woman related to her was suddenly killed, the sapphire crystal was suddenly stolen, the mysterious organization, the mysterious and spectacular strange scene in Qinan, and she strayed into an isolated island... After experiencing a series of life and death trials, will they join hands in the end?