A report exposed that the renowned corporate giant JuLun Group in Canghai City has covered up the truth about a mining disaster that occurred years ago. Deputy Director Qu Jianghe (played by Pan Yueming) becomes the focal point of the anti-crime and anti-evil campaign. When he gets involved in the investigation, he realizes that the line between right and wrong in reality is no longer clear-cut. Due to various interests at stake, his opponents, friends, and even his superiors all demand the concealment of the truth. The newly appointed female director Yan Ge (played by Chen Shu) is also shocked by the harsh and heroic reality. Covering up is a greater evil than the crime itself.

Widowed for 18 years, Du Ruyu is determined to marry her four daughters into "good" families. To achieve this, she bears enormous financial pressure to buy a house in the capital, hoping her daughters could all have a marriage that's "suited to their social and economic status (with rich or noble men)". However, instead of the ideal wealthy son-in-laws, a series of unexpected young men have inexplicably intruded into their lives: the sheepish Lu Buping, who is a military officer's son; the foolish yet arrogant heir of a prince; the Fourth Prince, who is oblivious to social cues but naturally kind; and Li Tengyun, who is full of positive energy but always messing up. None of these men meet Du Ruyu's standards, yet they are getting closer and closer to her daughters...