Rumor has it that they became attached when they were studying at Columbia University. During his stay in the United States, Liu experienced a thoroughly remoulded experience-a study tour, a successful slimming, and now his new girlfriend ZhangZetian, a Tsinghua University undergraduate "milk tea sister" born in 1993. It is understood that during Liu's study tour in the United States, Sister Milk Tea was also an exchange student in the United States, but she was not a student of Columbia University. She often went to Columbia University to find friends to play on weekdays, which further strengthened Liu's ideas.

Many students at Columbia University know about the relationship between Sister Milk Tea and Liu. After a meal, the two "burst into flames" and soon fell in love. The financial reporter learned that before Liu's friend went to visit him in the United States, Liu came to the dating place with milk tea and officially introduced her as his girlfriend. ZhangZetian, who seldom advertises, once praised Liu for his outstanding personality, JD. Corporate culture of COM.