Li Cong, once a young hotshot CEO, is unexpectedly transported into the body of a chairman in his fifties after a car accident. Shaken by the loss of his youth and status, he navigates the experience of elderly life and meets Wang Linzhi, a kind and resilient café owner. From misunderstandings to companionship and mutual redemption, the two fall in love, facing past grudges and social prejudice together. In the end, they restart their lives beneath the dusk sky and find the romance of a "second spring."