Kalpas is an aggressive and emotionally unstable person. He is always looking to fight, maim, or kill something. Apparently he was so hard to deal with that when Elysia made a guide for being around him, it sold out almost immediately. Though easily angered Kalpas actually shows an immense amount of restraint and doesn't resort to violence immediately. He has shown that he has the capability to warn people before he fully loses control. He is capable of caring for others, especially children.