Xia Yingxue has outstanding talent in painting and uses colorful colors to outline the dream world; Gu Xingyao has a sharp mind and has made his debut in the business world. The two soon fell in love, walking around the campus and dreaming about their future.
But the good times did not last long, and the cruel reality followed. Xia Yingxue suffered from severe depression due to long-term creative pressure, life difficulties, and the test of her mother. The pain and despair forced her to leave her beloved Gu Xingyao. For the next 1621 days, they were separated from each other, and Gu Xingyao could never forget the time he spent with Xia Yingxue.
By chance, Gu Xingyao finally reunited with Xia Yingxue through various efforts. At this time, Xia Yingxue was still struggling in the quagmire of depression, and Gu Xingyao's appearance was like a warm sun lighting up her dark world. In this long-awaited reunion, can Gu Xingyao help Xia Yingxue overcome the disease and let love shine again? How will the two continue the sweetness that was interrupted?