He is an evil and manipulative being, he can shapeshift into different characters such as Ink Sun Wukong. He's currently trapped in the Scroll of Memory. The Scroll of Memory was created to record every event that has ever occurred and to imprison evil beings inside of it as an act of punishment, making them relive the sinful parts of their past. To make sure that no one would break free from the scroll, the creators put a spell on it in the form of Ink Demons.