The two people who have never been separated since childhood have always been within three feet of each other because of the lock and key. This is their fate, their destiny. Because of the relationship between gods, Xiao Ran Duanhen reincarnated into the 21st century to save Che Ziqing. Che Ziqing committed suicide by the Yangzi Lake without any hesitation and traveled through time and space to the 21st century. Xiao Ran Duanhen forgot everything, but Che Ziqing remembered everything. The lock and key are still not released and are closely following each other. What will happen to Lin Yifeng (Xiao Ran Duanhen) and An Che (Che Ziqing) in the 21st century?
Note: This work has nothing to do with "I Will Know You All My Life", please don't confuse them with each other.