Navi

Navi

ナヴィー
Navi has the appearance resembling what Echo will potentially look like in the future. That is, a tall, beautiful young woman with a large bosom and curvy figure, long pink hair, and horns on her head. She tends to wear a light-colored dress resembling a robe of some sort. She has marks resembling a Seikoku over much of her body.

At once both wise and playful, Navi holds a great deal of knowledge and wisdom from the dragons of the past. She especially loves teasing Echo and Ash. However, she does care for both of them.
Navi is no ordinary figure, but the incarnation of the Dragonweis, or the collective memories of all dragons since the beginning of time. It is she who will eventually decide who will win the battle between Echo and Mordred.
(Source: Wikipedia, Seikoku no Dragnar Wikia)