share time: 2026-01-31 00:30:26
When emergency doctor Su Xiao saves Gu Jingshen from cardiac arrest, their heartbeats accidentally sync—every resonance reveals Gu's painful memories of searching for his missing sister. Shockingly, Su Xiao's transplanted heart comes from Gu's sister! On their 80th sync, the truth unfolds: ten years ago, the sister disappeared while saving young Su Xiao from drowning but was rescued by a stranger. Gu approached Su Xiao to investigate his sister's death, yet fell deeply in love with her. Now, Su Xiao's heart begins to reject the transplant, and the 80th heartbeat is their last chance—find the alive sister, or lose each other forever?
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