The royal sister of a modern wealthy family traveled to the tragic princess Sheng Zhi and trained hard to become a killer. She escaped from her husband, the emperor Dong Chenye, and became the leader of the killer organization. A woman disguised herself as a man and traveled around the world with her maid. In order to hide her identity, she married a beautiful killer with a tragic life experience and started a vigorous career in the world. The beautiful killer fell in love with her husband Sheng Zhi, who was also a woman. Sheng Zhi's real husband Dong Chenye fell in love with him as a runaway concubine, and also developed a liking for the handsome young master she played in the world. The handsome young master is not a young master, and the king is not a king. Where will the entanglement between several people go? How to sort out the love, hatred and hatred?