Xu Xian suffers from autism since young due to the loss of his mother. He wants to lead a normal life, until he sees someone named Zhou Tong who looks 70% similar to him. He is determined to find the familiar stranger. Due to a matchmaking session, he meets Shi Dian Dian, who readily agrees to help him find Zhou Tong. They went to watch a ballet performance together. Co-incidentally, the main actress of the performance Wen Xiao Yao is Zhou Tong's girlfriend. On the way to watch Wen Xiao Yao's performance, Zhou Tong got into a car accident. From that day onwards, the relationship between the two pairs of lovers took a huge drastic turn. After experiencing life's turning point of separation and reunion, the youths are able to understand the true meaning of life. With Shi Dian Dian's help, Xu Xian is able to walk out of his trauma. Wen Xiao Yao also gets up from the lowest point of her life, and after hard work, succeeds in becoming a true ballerina.
