Gate Keeper

Itsuki was going to be killed by Sensui but when Sensui asked if he had any last words or requests, he said yes. Sensui wanted to know what they were. "If it's possible, I'd like to live one more day." Sensui of course, wanted to know why. "Because my favorite comedy is ending tommorow and I want to see the last show." he then laughed. Sensui decided not to kill him and Itsuki became his partner. Itsuki was with Sensui when he met the Black Black club. He has supported him even in his insanity. He loved the more feminine personality that sensui has. (The origional personality.)

• Itsuki is a demon with the power to open a hole between the Makai and Ningenkai.
• He has a shadow demon which he controlls and can trap people inside in another dimension.
• He is known as the six armed demon.