Cai Xiaoying (played by Cai Ming) and Li Lili (played by Li Xueqin) are mother and daughter from the distant Andromeda Galaxy.The Andromedans are a race without emotions. Although they have been in a mother-daughter relationship for thousands of years, the two had constant friction and parted ways on Earth, and they did not hear from each other for several years.And this natural mother-daughter relationship was forced to restart on the day when Li Lili's new journey in life began - Li Lili and Xiao Meng (played by Meng Hetang) got married.As an interstellar social animal, Li Lili's job is to investigate all aspects of the earth, and in order to conduct an in-depth investigation, she chose to marry Xiao Meng, a man from the earth.

When they were newlyweds, Cai Xiaoying, who had spent all her wealth and still had to wait half a year to return to her hometown in Fairy Star, came to see her, planning to spend the first half of the year living in a room for free and get travel expenses.Although Xiao Meng has a “real father”, Lao Meng (played by Yang Haoyu), Lao Meng is no match for Aunt Cai in terms of unreliability.A young couple with their own thoughts, a mother and daughter who are venomous at each other, a father and son whose identities are reversed, and the in-laws who are strangers to each other, the “sarcastic family” forms a group.This loose family will continue to encounter all kinds of jokes and challenges in the rest of their lives.