Ulquiorra Cynthia

Ulquiorra Cynthia (ウルキオラシンシア) is a former Cipher Pol Agent, turned spy for the Iron Legion. A descendant of Jerry from the Karate Island, she was known to be simultaneously one of the most talented agent in the recent history of the organization, yet also one of the most insane, unpredictable and nearly impossible to deal with, so much so that she was kicked out from the organization. After a while, she was taken under the wings of dr. Weil, and joined the Iron legion. She is now of the organization premier assassin, thanks both to her superb skills with and the Devil Fruit she has eaten, which has granted her the power to "dilute" her essence.