A meeting over coffee: Yan Xiaoyue, a 26-year-old graphic designer, meets Cheng Yuan, a financial analyst, at an independent cafe called Waiting for Someone. A sudden downpour gets the two strangers talking, and they discover how deeply their souls resonate.
A sweet time building dreams: Over three months, they explore every corner of the city. For Yan Xiaoyue’s birthday, Cheng Yuan gives her an “emergency kit” filled with 365 letters and promises they’ll open one each day, becoming each other’s most steadfast support.
The first cracks appear: Cheng Yuan suddenly starts working late all the time. Mysterious calls appear on his phone, and he grows increasingly cold toward Yan Xiaoyue, yet whenever she is about to give up, he suddenly becomes as tender as ever.
The truth on a snowy night: On Christmas Eve, Yan Xiaoyue brings Cheng Yuan’s favorite chestnut cake to his office, only to see him embracing his ex-girlfriend, Lin Yan. She learns that for the past six months, he has been wavering between the two women.
A resolute farewell: As Yan Xiaoyue leaves in the snow, she gets into a car accident. After waking up, she deletes all her contact details but keeps the 365 unopened letters. Only after Cheng Yuan learns she is injured does he realize his true feelings.
A reunion out of step: Two years later, Yan Xiaoyue has become a renowned illustrator. At a book signing, she sees Cheng Yuan wearing a wedding ring. Across the crowd, they exchange a smile,
