Lin Xiaoxi met the man she fell in love with at first sight, the brother of a classmate, at the freshman orientation party. What she didn't know was that the mature, steady and successful boss Si Xiangnan had also had a crush on her for thousands of years. Under Si Xiangnan's strong offensive, they came together. Later, they experienced separation, reunion, and misunderstanding, but they were each other's only one from beginning to end. This is a sweet article, a feast from school uniform to wedding dress.