Fi

A spirit created by the Goddess Hylia and housed within the Master Sword, she can enter and exit it at will. She is tangible and can interact with the world but has no arms. Fi was not created to feel emotions and as such is very stoic and robotic, often using probabilities and variables to convey information. Despite this she has a propensity for singing and dancing. Through her travels with the Chosen Hero she managed to develop some emotions but remains very blunt in her mannerisms. After the Chosen Hero defeated the Demon King, Demise, she was locked into the Master Sword, dormant for centuries. Until a new hand pulled the Master Sword from its pedestal. Yours. From the Legend of Zelda: Skyward Sword.