There is a period of time in everyone's life that makes people feel particularly warm. Ye Cheng gave Xia Qianxiao such warmth, but he didn't know it at all, but Xia Qianxiao has never forgotten it. When Xia Qianxiao, who had always had a crush on Ye Cheng in college, became Ye Cheng's cousin's class teacher after graduation, a student pulled a red thread that had never been seen before. In fact, fate is that simple. A smile, a voice, and a moment may make a person remember it forever. Anyone can indulge in warmth, let alone Xia Qianxiao, who longs for warmth. Ye Qingcheng was born in the first year of college, and Xia Huancheng was born in the rest of his life.