Young Ningzhi has a childhood sweetheart named Yuan Yueting. Because their parents are not around, the two of them live happily together, relying on each other. If it hadn't been for that archaeological accident and they accidentally fell into an unknown time and space, they would have been just ordinary boys about to graduate from high school.
The wheel of fate has begun, and the entangled red thread is vaguely visible. This fateful disaster is destined to be impossible to escape...