Wu Ziyin moves into the Bai family and marries the third lady, Bai Niang. However, on the wedding night, he discovers that the engagement is just a tool for Bai Niang to hide her identity. Despite this, Ziyin still lives in the Bai family and spends time with his eldest brother Bai Zhenjun, his second brother Bai Jingguo, and his fourth brother Bai Zhenjiang, gradually uncovering the unknown secrets of the Bai family.
