It is the name of a fan of Chinese mainland male singer, actor and music producer Kun. Because Kun's own name is Kun, and the name of the fans is, which means that he will always love and protect Kun. However, through the efforts of many sand sculpture netizens, the word has the meaning of black powder, so it is also called Xiao Heizi, and Heizi especially likes to say that he is Aikun (the name of KUN fans).