1 World Manga 4

Orphaned teenager Rei wants to a great fighter, but his trainer, who can become various animals, strives to develop Rei's mind, heart, and spirit and sends him on missions dealing with poverty, AIDS, the environment, corruption, child soldiers, and women's education.Orphaned teenager Rei wants to be a great fighter, but his trainer, who can become various animals, strives to develop Rei's mind, heart, and spirit and sends him on missions dealing with poverty, AIDS, the environment, corruption, child soldiers, and women's education.