Xie Yanheng, an upstart in science and technology, hires Gu Qingci, an eccentric cultural relic restorer, to pretend to be his fiancée in order to cope with the pressure to get married. The cohabitation life is full of chaos, and the cold boss is frequently manipulated offline by the heroine to break his defense, but unexpectedly discovers that she has repaired not only cultural relics, but also his dusty heart. When the wealthy family's conspiracy and the shadows of the past surfaced, the two pretended to be real while fighting and helping each other, running in both directions, breaking down obstacles with their sand sculptures and affection, and finally became sweet enemies of "the real domineering president fell in love with me".