In 1978, Lu Ye is reborn on the day of his arranged marriage. In his previous life, he married into his wife's family, endured countless humiliations, and finally built himself a fortune, only to be murdered in a plot against him. This time, Lu Tianci is also reborn. He gets ahead of Lu Ye and marries Du Mei, leaving Su Mengyao for Lu Ye instead. The two sign an agreement to enter a sham marriage, promising not to interfere in each other's lives and that either can end the marriage at any time. Drawing on his past experience, Lu Ye starts a sesame oil and sesame paste business, gradually establishing himself. Su Mengyao devotes herself to her studies, and as they spend time together, her once-frozen heart slowly begins to thaw. Lu Tianci and his mother repeatedly scheme against them, only to have their plans exposed. After discovering the truth about his birth, Lu Ye breaks with his family and takes Su Mengyao to the city. Through their everyday companionship, the fake couple gradually falls genuinely in love.