After being reborn, Lin Yumian discovers that she still has 80 years left to live. Her husband, Shen Chuynian, who claims he can foresee death countdowns, originally had only 2 years left, but deliberately conceals the truth and tells her that he has only 2 years to live. Shen Chuynian resolutely quits his job and takes Lin Yumian on a trip around the world, behaving with unusual urgency and in increasingly strange ways. Later, Lin Yumian notices that her remaining lifespan has inexplicably decreased by 1 year, while Shen Chuynian's has increased to 3 years. This leads her to realize that Shen Chuynian has been secretly exchanging their lifespans.