In the third year of Jialong's reign in Dajing, General Shen Yan fought bloody battles at Yanmen Pass, but at the moment when the tip of his gun was stained with blood, he traveled to a modern high school classroom. The dazzling fluorescent lamp, the unfamiliar mathematics paper, and his deskmate Lin Wan who handed him strawberry candy became the first ray of light in his other world.
He couldn't learn to type on a mobile phone, and couldn't tell the difference between traffic lights. It was Lin Wan who took him to taste his first hamburger, listened to him read old poems from the frontier fortress, helped him with math in the sea of high school questions, and secretly drew figurines of young generals on the cover of his notes. His love grew wildly in the sweetness of the strawberry candies and the fragrance of the monthly exam ink. He saved his pocket money for three months to buy a silver bracelet, and wanted to express his love for it after the college entrance examination, but was interrupted by the suddenly hot mutton-fat jade buckle around his waist - it was a token of his time travel and a sign that it might bring him back to a thousand years ago.
He began to hide, from not responding to messages from a different university to insisting that it was "inappropriate" when facing Lin Wan, hiding his unsaid confessions and secrets across time and space deep in his heart. The burning pain in the jade button gradually disappeared, but the girl who could hand out strawberry candies and pick up candies and fry chestnuts never appeared in his future again.
Many years later, Shen Yan became a history teacher. When he saw a candied roasted chestnut stall on the street corner, he realized that some regrets were never due to lack of love, but because he held the thousand-year gap in time and space, and even the qualification to say "I will accompany you" became an extravagant hope that he could not cross. This is a story that begins with strawberry candy and ends with an unspoken good night, a story of youthful love and fateful regret that spans thousands of years.