share time: 2026-07-07 12:34:45
When 30-year-old Lin Xiao sorts through her grandmother's old belongings, she accidentally activates an AI time-travel device and returns to her university days 10 years ago, reuniting with her first love Chen Yu who she missed back then. But the AI has strict rules: each time travel consumes one day of her life, and she cannot interfere with the original timeline. Lin Xiao is caught between the joy of reunion and the countdown of her life, and accidentally discovers that the truth of Chen Yu's disappearance back then is related to the AI developer—her late grandmother. A love-hate entanglement across time unfolds.
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