Gu Qinghuan, the eldest daughter of the Gu Group, and Lu Jingnian, the president of the Lu Group, who is two years her senior, have been secretly married for three years. A misunderstanding about an "affair," engineered by her stepmother Lin Shu, forces them to divorce. Afterward, Qinghuan gets caught up in rumors that she is a "corporate spy." Lu Jingnian approaches her as a "business partner" to investigate, only to uncover the truth: her stepmother's plot to seize the Gu family fortune is intertwined with a scheme by his ex-girlfriend Su Wan to fabricate evidence. As they investigate, Lu Jingnian uses his warmth and devotion to lower Qinghuan's guard, while Qinghuan turns the tables with her own cunning and exposes the villains' hypocrisy. From the awkwardness of "running into an ex-husband" to the redemption of "protection and sacrifice," from the regret of "loving someone you can't have" to an old romance rekindled as if time had turned back, their story follows a cycle of cause and effect worthy of the "six realms of reincarnation." In the end, Lu Jingnian's "truth-or-dare"-style confession helps Qinghuan let down her guard, and they mend their broken relationship.
