Sensei is a retired CO from Gold Comet that decided to take command after its nation was invaded by the Black Hole army. He is an elderly paratrooper wearing an orange jumpsuit and a brown helmet with aviator goggles. He's very laid-back and prefers not to fight in combat, instead giving young COs plenty of combat advice. He's the mentor of Gold Comet's emperor Kanbei and another Gold Comet CO Grimm. He likes lazy, rainy days and hates busy malls. He has a good sense of humor and likes to relax.