Transfer student Gu Yan and school beauty Lin Xi met for the first time under the cherry blossom tree, and gradually got closer through photography club activities. The boy made a promise with a starry sky necklace, and the girl left a mark of her heartbeat in the studio. The crisis in Lin's father's company forced the two to separate, and a carefully designed misunderstanding caused Gu Yan to leave with a broken starry sky. In the past ten years, Lin Xi has become a cutting-edge designer, and Gu Yan has transformed into a technological upstart. An unexpected reunion backstage at fashion week, the starry sky necklace wet by rain reflects the past. The identity of an unmarried couple was deliberately arranged at a business reception, and the truth behind the curtain was revealed. The life and death rescue at the fire scene, the two-way rush under the cherry blossom tree. When the love letter from twelve years ago was rediscovered, the confession that spanned time and space finally resulted in marriage.
