Chen Yan transmigrates into a fake heir expelled from the marquis manor, returning to Chen Clan. Facing a biased household and a gambling father, he uses modern thinking. Chen Yan is determined to rise through the imperial examination. Servant Laicai arrives under the order of the real heir Xiao Lu to infiltrate and test him. He resists family obstruction, breaks class barriers, rewrites fate through official rank, and achieves a comeback.