To find true love untainted by material interests, Shen Nian, the daughter of the richest man in the country, conceals her identity and disguises herself as an ordinary young woman who sells fish. Meanwhile, business tycoon Gu Qianzhou also disguises himself as an ordinary construction laborer to see people's true colors. Through a twist of fate, the two unexpectedly enter a flash marriage and begin their married life while both are pretending to be poor. One believes the other is a construction worker, while the other thinks their spouse is a fish vendor, leading to countless hilarious misunderstandings. As their true identities are gradually exposed, their lies and trust face a tremendous test. After misunderstandings, separation, and making their choices once again, they finally abandon their disguises and join hands to find a love in which both wholeheartedly choose each other.