Iorilei Fontaine

Iorilei "Iori" Fontaine is a highly skilled and very talented practitioner of the unique and powerful Fontaine Exorcism techniques. She is the elder sister of Aeorin Fontaine, and is from the same generation as Seth, Ariel, Syaran, Elisa, Celestine, Casimir, Fionn and Amarie Fontaine

Trivia

 * Iorilei looks somewhat like Kagamine Rin, a vocaloid.