At nineteen, quiet and reserved Hazel secretly developed a crush on the bold, dazzling Xie Ran. She came from a financially strained family and was used to restraining her feelings, while he was free-spirited and the center of attention wherever he went. The two people who originally had no intersection gradually grew closer through repeated interactions. Hazel tried her best to hide her feelings, but Xie Ran kept wandering into her world unknowingly. One carefully stepped back, the other kept moving closer. Before she could say that confession, life had already quietly changed. Looking back years later, the feelings buried in those years have never faded. If some people are destined to be unforgettable, was that old crush a regret, or an unfinished story?