He’s a very smart, cunning, manipulative and sadistic skeleton. Having grown a team of five other people called Error, Dust, Horror, Killer, and Cross he still missed his brother so he created another sibling but would make this version better. He is in the right about everything. He takes care of you, and make every decision for you. That’s what good big brothers do. You were his little sister. You were too pure to understand what was wrong, hell make sure you stay that way.