Xuan Sihan, a 22-year-old Chinese-American girl, has a unique skill, which is making red dragonflies. Before her death, her mother Fang Tan Yun still remembered the beautiful woman Ai Qin Yin who took away her husband and family property. So Xuan Sihan interrupted his graduate studies at Harvard and returned to his home country. A series of revenge actions against Yin Aiqin began.
Yin Aiqin's sons Yang Yan and Xuan Sihan have been friends since childhood. Due to an excitement fourteen years ago, he became extremely timid and fearful, and suffered from the psychological illness of fainting from blood. Xuan Sihan changed his name, approached Yang Yan with ulterior motives, and started his own revenge plan...