Taiwanese businessman Mark (Mark Chao) has an affair with socialite Fang Rouyi (Shu Qi), but he cannot promise her anything. This makes her extremely sad, and she leaves the hotel in a rage. On the street, she encounters a hotel waiter Xiao Kuan (Ethan Ruan) secretly photographing her. Rouyi smashes the camera in anger, and then drives away with the wealthy businessman Lu Ping (Niu Chengze). It turns out that Rouyi was Lu Ping's lover, but she could not get a marriage contract. Because of that encounter, she and the stuttering Xiao Kuan had a relationship... Xiao Kuan's sister Yi Jia (Ivy Chen) is a cyclist, and her bestie is Niu Chengze's only daughter Xiao Ni (Amber Kuo), who habitually complains to her about her boyfriend A Kai (Eddie Peng)'s various bad things, but Yi Jia holds the opposite opinion and secretly makes a move. So a love triangle begins to divide the friendship... Mark goes on a business trip to Beijing and wants to buy a courtyard house. He meets Xiao Ye (Vivian Zhao), a real estate agent, and at the instigation of the police, he accidentally becomes the father of her son Dou Dou. From then on, a cross-strait love story began...