Mu Xiaoying (shey), her parents divorced when she was 5 years old, and her grandfather passed away. Since childhood, I have watched the girlfriends around my father (Mucheng) change, and the men around my mother (Shen Ling) change; I grew up with my grandma and learned skateboarding from my cousin. The only girlfriend, Lin Xun, also known as childhood sweetheart, is of great significance to Mu Xiaoying. Lin Xun's mother (Yu Daixi) has an extraordinary background and is the daughter of a business family. She has always been prejudiced against Mu Xiaoying, while Lin's father (Lin Zhuyuan) loves Mu Xiaoying very much and regards her as his daughter. Mu Xiaoying started to learn to smoke at the age of 14. She met a group of skateboarding friends outside and joined their family - "Shady Wings". At the age of 16, Mu Xiaoying fell in love with Lin Xun, and then her worldview completely collapsed...