Mikagami

Mikagami (みかがみ) one of Amaterasu's Three Sacred Treasures.

Appearance
Mikagami is a woman of average height. She has long, dark hair with straight-cut bangs. She has one dark and one pale eye, like the two other Treasures. Mikagami appears to wear a chihaya - an overcoat worn by shrine maidens during ceremonies - and a maetenkan  headdress.

Personality
Mikagami is loyal to Amaterasu and Heaven, to the point that she had no complaints or outward show of nervousness when she was called forth to participate in the covenant ritual.

Trivia

 * Historically, the Three Sacred Treasures of Japan were symbols of the emperor's divine right to rule over Japan. The three items are a jewel, a mirror, and a sword. Mikagami represents the mirror, as kagami means a mirror. The other sacred treasures used by Amaterasu, Mitama and Mitsurugi, represent the jewel and the sword, respectively.
 * The full name of the historical and mythological Treasure is Yata no Kagami.
 * Mikagami as one of the Three Sacred Treasures can reincarnate, but in a different way from the gods.
 * The names of the Three Sacred Treasures, Mikagami included, are written using hiragana. This sets them apart from other shinki in the series, whose names are written using kanji only.