At the wedding scene, the best man Si Yu fell in love with the cold bride Zhu Qingan at first sight. It happened that the groom, Yuan Zhong, escaped from marriage because of Bai Yueguang's ex-girlfriend, and absurdly asked Si Yu to pretend to be himself. Si Yu seized the God-given opportunity, decisively changed into a dress, confessed the truth to Zhu Qing'an on the spot, and persuaded her to change her groom before the battle with a better family background and the promise of loyalty to marriage. This flash marriage, which started as a calculation, gradually heated up with the tea-style pursuit of Si Yu's loyal dog and the help of his family. After being disrupted by their exes, misunderstandings and trials, the two finally went in both directions, turning a farce of a business marriage into a true sweet love.
