Lin Yue transferred to Yucai High School and was attracted by the mysterious old library. Su Ran, the popular figure at the front desk, has excellent grades, is handsome and has a lot of money. Unknowingly, the two of them have a secret love. During an adventure, they unexpectedly discovered a secret that had been hidden for many years in the library. The dusty past was revealed, and behind it was a disappearance case that occurred many years ago. As the investigation deepens and danger approaches, can they solve the mystery and protect each other's love? On the campus under the moonlight, the secrets of the old days are about to be revealed one by one.
