Cao Xiaonuo ran a bar in Star City and kept his promise to wait for a girl named Xia Zhe'an. After waiting for many years, Xia Zhe'an never kept his promise. Later, Cao Xiaonuo met Wu Leshan. Her lonely temperament inadvertently attracted Cao Xiaonuo. They were close and distant from each other, as if there was a mysterious guidance in the dark. Cao Xiaonuo thought he could start a new life without Xia Zhe'an, but Wang Yuan suddenly appeared in Star City and vowed to reveal the past that Cao Xiaonuo and Xia Zhe'an had deliberately concealed.
Wang Yuan's younger brother Wang Kai had a deep relationship with Xia Zhe'an and Cao Xiaonuo. At that time, Xia Zhe'an and Cao Xiaonuo had a close relationship, but Wang Kai also liked Xia Zhe'an to the point of going crazy. Later, a bizarre car accident took Wang Kai's life and caused Xia Zhe'an to leave Cao Xiaonuo. The car accident was both Xia Zhe'an's careful calculation and an accident of God's will.