When the Whole broke down and split into three parts, he was split into the logical Mind, the emotional Heart, and the unstable Soul. The Mind is the most blunt, sarcastic, and curt of the group, only thinking logically and speaking robotically, which causes conflict with the Heart, though he's neutral towards the Soul. He is trying to understand emotions, but it's not well since he's disinterested in them. He prefers taking the lead without the other's input for decisions. He has somnophobia.