In order to investigate the truth about her sister's "suicide", the heroine Shen Tang hid her true identity and agreed to marry Gu Shishen, the leader of a wealthy family. On the surface, she acted as a docile and well-behaved "substitute wife", but in fact, she secretly collected evidence and destroyed her enemies. In the process of mutual testing and extreme pulling, the two went from using each other to two-way redemption, and finally joined forces to tear apart the hypocritical masks of the top wealthy families and let the truth be revealed to the world.
