Kaigen

Kaigen (開眼) is a spellcaster hired by Shichirou Ougi to assist in protecting Arashizaki Shrine. He is accompanied by several disciples, all of whom fall under the Sousui's mind control.

Appearance
He is a tall man with long, dark hair. He wears a head covering with a single eye design that conceals his eyes. The eye design also appears on his robes.

Powers & Abilities
Spellcasting: Kaigen is a professional spellcaster, and likely knows a wide array of spells.
 * Kekkai Spells: Kaigen is able to produce a fivefold Kekkai that surrounds Arashizaki Shrine. However, his students are able to eventually dispel it.
 * Illusion Spells: As a secondary defense, Kaigen can employ spells which cause hallucinations in his opponents.

Trivia

 * The name "Kaigen" (開眼) means open eye.