Doujin

In Japan, a doujin (Japanese: 同人, Hepburn: dōjin) is a group of people who share an interest, activity, or hobby.

One famous example is Ozaki Koyo, who led the Kenyusha society of literary writers that first published collected works in magazine form in 1885.

Over the last decade, the practice of creating doujin has expanded significantly, attracting thousands of creators and fans alike.

In Western cultures, doujin are often perceived to be derivative of existing work, analogous to fan fiction.

To an extent, this is true: many doujin are based on popular manga, anime, or video game series.