Dong Ni, Xi Du and Nan Yin are three cousins. Dong Ni has rebellious personality, because of her parents situation. Before she decides to run from her family problems, and get married in Germany, she tries to take Xi Du with her, and to do so, she tried to mess with his relationship and his girlfriend. At the same time Xi Du, after losing his parents, raised by distant relatives, is still trying to repay his debt of gratitude to them, working hard for the whole family. The last of them, Nan Yin had a perfect family since she was a child, and the only form of her disobedience over the years, was to get a marriage certificate in order to resist her mother's control.