ACGN is the abbreviation of English Animation, Comic, Game and Novel. It is a new vocabulary expanded from ACG, which is mainly popular in China cultural circles. Because the traditional definition of ACG is not enough to cover the related fields of modern youth culture and entertainment, the word ACGN with light novels and other literary works is derived. The extended material ACGN mainly refers to Japanese animation, comics, games and novels. One of the reasons is that the word "ACG" originated from ACG Review with the theme of Japanese animation games. ? The second reason is that animation, comics, games and novels are closely linked, which is a unique phenomenon in Japan. The words used by these four industries in other countries simply juxtapose the four industries and lose their meaning.

The emergence of ACGN cultural circle is due to the close combination of four carriers, whether it is novel comics or game animation, the transformation between carriers can create excellent works that bring new senses. It can be said that ACGN is a family, and together they form the second element pop culture circle.