Li Dajun, a car mechanic, and Liu Mei, a nail technician, two young people who are in love with each other, set a wedding date at the engagement party, but at the same time, Li Dajun also received a challenge from his future father-in-law Liu Kejian - a 500,000 yuan betrothal gift. For Li Dajun, it is almost impossible to come up with a 500,000 yuan betrothal gift within half a year. So Li Dajun, Liu Mei and Liu Kejian began to fight wits and courage, and the process was full of jokes. In the end, through the joint efforts of the two young people, they finally overcame the many obstacles of traditional thinking and entered the marriage hall.