Genre Adventure is a popular genre of manga. It has been around for decades and has been influential to the industry of manga.
This genre falls into 2 main categories - traditional and modern. The traditional is often based on Japanese mythologies. The modern is more like a blend between science fiction and fantasy with a hint of reality.
Themes in Genre Adventure include: exploring new worlds, discovering new cultures, self-discovery, inner strength and moral dilemmas.
It is not uncommon for this genre to have elements of suspense, mystery, or horror. One popular example of this genre is "A Silent Voice" which was adapted into an anime movie in 2017.