After her once-prominent family falls into ruin, the disgraced heiress Jiang Jingxia is forced—under threats and manipulation from her stepmother—to marry Lei Jiyun, a powerful tycoon whose intelligence is impaired. After marrying into the wealthy Lei family, an accident during Jiang Jingxia’s interactions with Lei Jiyun unexpectedly triggers the steel pin embedded in his brain, causing the two to switch consciousnesses.
With his intelligence restored, Lei Jiyun becomes the cherished favorite of Madam Lei, who believes he deserves a wife of equal status and therefore begins to openly and secretly suppress Jiang Jingxia. What Madam Lei does not realize is that Jiang Jingxia and Lei Jiyun have already swapped consciousnesses—meaning every act of suppression actually targets her own grandson, leading to a series of ironic and hilarious situations.
Meanwhile, danger quietly approaches Jiang Jingxia. Having long fallen in love with her, Lei Jiyun not only saves his beloved but also triggers the steel pin in his brain once more, returning their consciousnesses to normal. In the end, showered with Lei Jiyun’s devotion, Jiang Jingxia begins a sweet and blissful married life.
