During the Spring Festival travel rush, Su Nian gives up her window seat, but her husband coldly refuses to acknowledge her. Su Nian tragically falls onto the tracks, only to unexpectedly be reborn three days earlier. Calmly gathering evidence, she boards the same train again. When her husband's mistress asks to switch seats, Su Nian flatly refuses. Under the livestream cameras, she reveals every piece of evidence one by one, tearing apart the trio's disguises. Her husband kneels and begs for mercy as they turn on one another, and the human trafficker is arrested on the spot. In her previous life, her kindness led to her downfall; in this life, she gives her kindness an edge.