Chen Xi, an intern at Yingcai High School, ended his internship. He said goodbye to his students and got on the bus back to school. Unexpectedly, a car accident brought his soul to the most annoying student Shen Zijun. Reliving the three years in his memory made Chen Xi miserable. Let's see how the 21-year-old Chen Xi rolled among a group of 15-year-old children.