The normal human body temperature is usually maintained at 37°C. When you meet the person you like, your body temperature will instantly rise by 0.2°C. As the saying goes, it is love at first sight. Bo Yanci fell in love with Pei Li at first sight in high school. Pei Li's sudden departure abroad became Bo Yanci's regret that he could not express his feelings. At midnight in Huaijing City, Pei Li returned home to have a dinner with friends. While drunk, he ran into his high school classmate Bo Banyan. Little did he know that this seemingly unexpected reunion was actually a long-planned plan that he had been secretly watching for many years. Bo Yanci establishes contact with Pei Li, and in the process helps Pei Li investigate the truth of the tragedy, step by step, guides Pei Li out of the haze, and fights and fights for the love that has been unabashed for many years...