Anime (animated films) and manga (comic books), fans are easily misunderstood and can even face prejudice. In fact, they are usually not as people see them. As one of the many anime and manga fans, I would like to show people what the real world of the anime and manga fan is like. As the fan population grows, the market increases, so this chapter will also act as a guide for those who are interested in this market. This chapter aims to introduce readers to the world of anime and manga fandom and to its fans, in particular. It will present and explain specific terms such as weeaboo, otaku, waifu, husbando, fujoshi, and critic. This chapter will also describe the different characters of anime and manga fans and explain how these characters can affect marketing. Finally, this chapter will look at the current market size of anime and manga fandom and explore how the culture is used in marketing.