Litchi and blueberry stems originated from Liu Yuxin, the captain of TeamHII, a derivative group of Chinese mainland female idol group SNH48. In the idol competition program "Idol Trainee" on 20 18, Liu Yuxin was asked, "What song can you sing?" She replied, "I like lychees and blueberries." This seemingly unrelated answer instantly detonated the audience and became a classic bridge in the program, which also officially pushed the word "litchi blueberry" to the forefront.

After that, the words litchi and blueberry spread rapidly on the Internet. Some young people use "litchi and blueberry" to describe their favorite things and people, and even become stalks.