Single woman Hua Meili (Song Dandan) is self-reliant. She not only raises her son Gao Chuang (Wang Liang) with all her heart, but also runs a thriving hot pot restaurant. The only thing that worries her is that Gao Chuang's household registration is not in Beijing, which will have an immeasurable impact on the future college entrance examination. In desperation, Sister Hua wants to find a man with a Beijing household registration to marry. Under the advice of marriage consultant Liu Jones (Liang Jing), Sister Hua decides to get a household registration by fake marriage. After twists and turns, Sister Hua meets Jones's brother Liu Deyi (Fan Ming). Deyi has no money and no house. He is struck out by his wife and cannot even keep custody of his daughter. In order to make a comeback in business, Deyi chooses to marry Sister Hua. The two people, each with different purposes, come together, and they inevitably experience various twists and turns and tests during the period. During this period, their relatives and friends are also slowly affected by this extraordinary marriage...