The Rong and Song families are family friends. The second young master of the Rong family and the third young lady of the Song family were childhood sweethearts and spent a long time together. In kindergarten, someone snatched Song Qian's candy. Rong Ting stood up for her, but was pushed to the ground and beaten. In elementary school, someone soiled the beautiful dress Song Qian had just put on. Rong Ting sold her favorite toy to buy her a new dress. In junior high school, someone wrote a love letter to Song Qian. Rong Ting found out and wrote a letter for her, with a toad drawn in the letter. In high school, Song Qian was confessed in a high-profile way, and Rong Ting fell in love with the gentle school beauty from the next class. In college, the school belle was bullied, Rong Ting maimed a man for her, spent two years in jail, and Song Qian went abroad. Later, Rong Ting was released from prison and Song Qian returned to China. There is a beauty he loves by his side, and she is still the girl next door. The sum of the youth they missed in those years is enough for them to reach the end of the world. You are the joy of youth. In other words, it is also you.