share time: 2026-02-08 00:37:32
Topology PhD Su Wan travels alone to the northern birch forest to verify her grandfather's "Heartbeat Function" formula, accidentally breaking into the "forbidden zone" of Gu Ye—a forester who has guarded the woods for a decade and hidden his unspoken past. Gu Ye is as silent and tough as a birch tree, but when Su Wan uses functions to track his routine and geometry to map every tree, the ice in his heart starts to crack. However, when Su Wan spots her grandfather's late lover's necklace around Gu Ye's neck, she realizes the "Heartbeat Formula" was never a math problem—it’s her grandfather’s regret for an old love, Gu Ye’s ten-year-hidden "I love you too", and their mutual rush across time. But just as Su Wan calculates "99% chance of our future", Gu Ye collapses in the birch forest he loves most, saving a tourist trapped in a swamp...
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