Su Qingqing, the illegitimate daughter of a merchant family, is forced to take the place of a noblewoman who fled her wedding and marry Gu Yanci, heir to the Marquis of Yongning, who is notorious as the "Demon of Death." On their wedding day, faced with the groom's scornful sneer, she acts on impulse and kicks this famously handsome man from the capital straight into a lotus pond, staging a wedding fiasco that leaves everyone gaping. She assumes this mistaken marriage will be nothing but the start of endless chaos, but to her surprise, Gu Yanci covers for her in front of everyone and smoothly puts the incident behind them. Only after entering the marquis's residence does Su Qingqing discover that this heir, rumored to be ill-tempered and cursed to bring death to his wives, is not only calculating and vindictive, but also hiding many secrets. Why has he been jilted so many times? And why is his attitude toward her, his "replacement bride," so ambiguous? Inside the marquis's household, open and covert attacks come one after another: her stepmother-in-law makes things difficult for her, and her sisters-in-law scheme against her. Meanwhile, currents of political turmoil surge beneath the surface, and Gu Yanci seems entangled in a conspiracy powerful enough to overturn the court. With the sharpness and resilience of a merchant's daughter, Su Qingqing goes toe to toe with Gu Yanci, trading barbs and tricks, while having no choice but to join forces with him against one crisis after another. From mutual loathing at first sight to gradually falling for each other through their many clashes and moments of support, this ill-fated couple slowly come to see the sincerity in each other's hearts amid their chaotic everyday life. But when the secrets of the past are revealed and family interests collide fiercely with personal feelings, can they break the rumor that the Demon of Death brings death to his wives and make the best of their mistaken marriage all the way to the end? A marriage that began as an absurd fiasco will ultimately write an unexpected tale of deep love and tangled fate amid laughter, quarrels, and heart-pounding danger.
