Itsuka Kotori

Itsuka Kotori is Itsuka Shido's foster little sister, the commander of the secret organization Ratatoskr, and is also a human. She is identified by the code name "Efreet", having "Elohim Gibor" Astral Dress, nd the Angel appeared as Camael.

She will change behavior patterns according to the hair band on her head. While having the white ribbon, she is a cute and naive sister, but she will become a cold commander after replacing with the black ribbons. As for the transformation of this personality, it seems to be related to her childhood and the agreement.