Navi is a blue fairy who is Link's "sidekick" throughout the game. She is instructed by the Great Deku Tree in Kokiri Forest to assist Link in his quest. All of the Kokiri children have companion fairies, but because Link is actually a Hylian, he never received one until Navi joined him near the beginning of the events in Ocarina of Time. She can be seen departing from him at the end of the game.
From a gameplay perspective, Navi functions primarily as a guide that points out clues in the environment and helps the player learn the controls and advance in the game. Most of her hints are about how to progress in the story or defeat enemies. She can also be used to lock on enemies in the game, items and other characters. She is one of the few characters with any voice-acting in the series.
