The young girl Sang Duo fell in love with her childhood sweetheart Fang Zhi. Zhi was a dissolute young man who did not know how to cherish her. Sang Duo was in love and studied abroad. Three years later, Sang Duo returned and met the injured and comatose young man Qin Lang in the elevator. Qin Lang had not forgotten the vague figure of the girl in the elevator for many years. Later, Sang Duo, his friends Du Yun (nicknamed Big Eyes) and Su Yan entered the Qin Lang family business to work. Qin Lang runs around for her, Sang Duo is released from prison, and Fang Zhi begs for his forgiveness. How will she choose? How does he deal with the various frame-ups by his friend Su Yan? How could Su Xiaoka and Li Daitao pretend that she was an elevator girl? Facing Fang Zhi's threat, will Sang Duo betray Qin Lang, who is silently protecting him?