Zhu Li once came to the Gobi Desert with Guo Ya because of a promise.
Guo Ya is a private desert protectionist, and he is also a planting expert. No one was willing to follow Guo Ya to the desert to endure hardships.
Regardless of whether he had a girlfriend of his own or a blind date, after getting along with him for a while, he couldn't stand Guo Ya's frequent absence at home, so he broke up with him.
Guo Ya had no intention of getting married until he met Zhu Li.
Purpose: Keep your promise