A mix-up at the Civil Affairs Bureau brings ordinary designer Su Qing and cold CEO Lu Yuan together in a mistaken marriage. One needs to save her family business, the other to pay off his debts, so they sign a three-month marriage contract. From clashes over their lifestyles to vicious sabotage by business rivals and mounting pressure from their families, this farcical marriage keeps escalating amid schemes and tender moments. When the contract expires, can the pair, who have turned their act into reality, overcome the gulf between their worlds and make an accident last forever? A marriage that began with a mistake will ultimately blossom into something beautiful through love and trust.