Nagatsu Ikune is the main protagonist, and the central character of the anime, Dragon Tidal. He is of the Ikune Tribe, a poverish tribe that is widely considered the lowest class among all of the tribes. Nagatsu's desire for recognition, as well as to bring his family out of the shadow, along with an ancient demonic entity dwelled deep within him, captures his emotions, goals and dreams as a fighter. Nagatsu's poor lifestyle and tough life forces him into an evironment where he struggles to be respected, which ultimately fuels his goal to be realizes as something more than just a "low class" or "scum of the food chain." Nagatsu strives to prove to the world that he is more than what people see to him, showing a true warrior from within. Nagatsu is the host of the twelfth and most powerful Kyairanum Demons, Kyairai. His goal is to prove himself to the world, that both he and his tribe are not nobodies, and to gain the title as the Dragon Tidal of the world.