The Japanese term Shonen (少年) means "boy", "boy" and "teenager" and is used as a collective term for manga, which is mainly aimed at a young male audience. The focus is on action-packed adventure stories, in which superheroes often fight against evil forces. The stories can be assigned to the categories fantasy and science fiction or they can deal with real as well as historical events. Sport is also a big topic. On the Japanese market, Shônen manga like "Dragon Ball" and "Yu-Gi-Oh" are the most important genre.