Synopsis：Xu Tian (Zhang Yishan), a young man from Hangzhou who lost his mother at a young age, has believed in parallel worlds since he was a child. After a chance encounter with a similar-looking young man from Beijing, Zhou Tong, Xu Tian begins to look for this similar stranger. The two lovers' love for each other takes a huge turn when Shi Dian Dian (Li Qin), who they met on a blind date, readily agrees to help Xu Tian find Zhou Tong, who was accidentally involved in a car accident on his way to see his girlfriend, Wen Xiao Yao (Ruan Ju), perform. Xu Tian and Shi Dian Dian gradually open up their hearts and heal each other during their time together. In the love between Zhou Tong and Wen Xiao Yao's twin arrows, Wen Xiao Yao also comes into the high point of her life and becomes a real ballet artist.