Nag

is the of Ryūchi Cave and the leader of the snakes. He is married to the great cobra, Nagaina.

Background
At some point after he absorbed 's remains, came to it and under its tutelage, the young man learned senjutsu and mastered the snakes' equivalent of Sage Mode.

Appearance
Nag is a serpent of extreme size — many times the size of a human, such as Kabuto Yakushi, with his massive body wrapped in thick coils. Along these coils are circular bands. He wears a hat with two pointed edges and an orb on top and a headdress. He also wears a chain with an orb around its neck, similar to the one worn by the. Nag also smokes, much like, using a long cigarette holder when doing so.

Personality
As the oldest snake in Ryūchi Cave, Nag is an extraordinarily wise individual, revered by all of the Cave's serpentine inhabitants. Little is known of Nag prior to his training Ryun Uchiha in Senjutsu, however, after this, once Ryun learned to summon him, he seems highly protective of Ryun. Ryun returns these feelings, showing a great deal of loyalty to Nag for his protectiveness.

Abilities
Nag is an incredibly powerful summon, being the strongest snake within the Ryūchi Cave. As a sage, he has access to powerful senjutsu techniques, having trained, , and Ryun Uchiha in the art.

Influence
Nag is inspired by the male cobra, of the same name, in the short story by, "". Like the snake in the book, his wife is named Nagaina. It is probable that his name was derived from the word , which was used to describe the half-snake, half-human deities in and  predominately in India, but also Japan.

Trivia

 * Originally, his name was, during the early parts of Enken.