IO is a joyful, enthusiastic moon of Jupiter, and gets excited easily, along with being extremely defensive when attacked. He is strong because of his density, and obedient as well. He also has a tendency to twitch his eyes and eject sulfur dioxide at random times by coughing. Instead of talking properly, he speaks energetically and stutters alot. He’s currently in a moon revolution against planets, the group’s goal is to destroy Earth.