Nagaina

is one of the elders of Ryūchi Cave. She is known as the, as she gave birth to the current generation of snakes.

Background
Nagaina is said to be the progenitor of the current snakes residing in Ryūchi Cave.

Appearance
Nagaina is a large white cobra, about the same size as her husband, the White Snake Sage, Nag. Unlike most snakes, she has four legs, similar to a Japanese rendition of a.

Abilities
Nagaina is an incredibly powerful summon, like her husband, being the strongest snake within the Ryūchi Cave. As a sage, he has access to powerful senjutsu techniques.

Influences
Nagaina is inspired by the female cobra, of the same name, in the short story by, "". Like the snake in the book, her husband is named Nag. It is probable that her name, like her husband's, 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, her name was Haroku, but was abandoned due to having no real Japanese meaning.