Shen Zhili embarks on a quest to revive her master using an ancient formula that requires a rare medicinal ingredient. When Su Chenche arrives, Shen Zhili is unexpectedly trapped in a time loop, discovering that each time Su Chenche dies, time resets. To complete the mission, the two set out together, navigating misunderstandings, a growing bond, and cryptic guidance from a mysterious figure in the shadows. Can they solve the riddle of the time loop and find the elusive ingredient?