Mark is a middle school physical education teacher. He and his wife filed for divorce, but they didn't make it public. After the reunion, Zhao Ling accidentally saw the divorce certificate in the field. Shocked, he confessed to the field and forced her into his arms. Unexpectedly, this scene was seen by Tian's daughter Mary.

Qiu Feng was besieged in the conflict with others. Wang Xiaomi was domineering and rescued her boyfriend, so they entered the police station. Mary smashed a billboard to vent her anger and was taken to the police station, so she met Xiaomi and had a good chat. Tian Tian took her daughter home from the police station, but Mary didn't tell her father what she had seen. Xiaomi and Qiu Feng are lovers, and they broke up angrily.

Uncle Mark is facing a middle-aged crisis, but he can't handle it as well as middle-aged people: he talked about Kan Kan, although the economy is not stretched, it seems that an economic crisis may occur at any time because of poor financial management. Wang Xiaomi's dream has always been to be treated as a princess, thinking that marrying Uncle Mark as old as his mother can realize his dream of being loved.

But she didn't expect to enjoy her uncle's maturity and stability, and to bear the part of his character that has been established and cannot be used with you. Besides, the little stepmother has to face her uncle's rebellious 15-year-old daughter Mary, her naughty 5-year-old son Kate Ma, her mother-in-law who is similar to her grandmother, and her ex-wife who wants to get back together with her ex-husband.

If the little stepmother wants to get the love she wants, she must remove these obstacles one by one, so that these second-hand relatives can fall in love with themselves and fall in love with themselves from the heart.