On the back side of this world, there is a secret ethnic group that is inherited from the bloodline of the ancient Si Chen - Chen Yi. They inherit the power of the Tao Seal left by the fifteenth Si Chen. Each of the fifteen Sichens is in charge of a law of heaven and earth: Zhu Jiuyin (time), Dijiang (space), Lingshou (gold), Jumang (wood), Gonggong (water), Zhurong (fire), Houtu (earth), Feilian (wind), Bingyi (ice), Thunder God (thunder and lightning), Xiangliu (poison), Jiuwei (dream), Luanniao (Tianyin), Fei (plague), Jiufeng (Tianji prophecy).
Chen Yi maintains a fragile order outside the sight of mortals and organizes the confrontation between "Chen Xu" and "Chen Xu", which has lasted for thousands of years.
Song Wangshu grew up in his uncle's house, and spent eighteen years learning to be an unnoticed person. He hid a secret: time would freeze in his eyes, and he could see things after a moment or even a long time later. He thought it was an illness and never told anyone about it.
Until a transfer student named Mu Ningshuang came to their school, their peaceful life was broken.
