Zikimura/Alter Ego

Z (ゼット Zetto) or also known as Dark Ziki (黒ジキ Kuroziki) by Zicoihno and Ash is one of the two personalities of Zikimura. He is the byproduct of his multiple personality disorder and represent his darkest and inermost emotions. Z only shows himself when Zikimura's emotion get the better of him, which in recent times is quite rare. He is considered to be highly dangerous and malevolent, not really caring who or what he hurts so long as he can use them as a stress reliever.