The Domineering President's Substitute for His Poisonous Wife

Xiao Yitang, in order to save his critically ill adoptive father, signed a substitute engagement contract with Gu Ziqian and became his fiancée. At the same time, he plans to regain his true identity and property of the Xiao family. How will she deal with the Gu family as the CEO's fiancée? Will she truly fall in love with the overbearing CEO Gu Ziqian? Stealing the stepmother's daughter's fiancé? How did she plan to return to the Xiao family and fight against her stepmother and sister? Will her love with Gu Ziqian finally end well?