Mitsuba is an accomplished swordswoman who runs a scheme with her partner, Reinhold, to trick innocent warriors into dueling her, by making them believe she has just beaten Reinhold up. She then challenges the unwitting warrior to a duel, with the hopes of beating them for a 10,000 potch reward. It works on many, including Jeremy, but backfired when she dueled Lazlo, the leader of the Island Nation forces fighting Kooluk. She is defeated, and thus agrees to join their fight. She continues leading the life of an honest warrior until the war is over, when her and Reinhold continue their schemes.

She is finally bested again by Kyril in a duel two years later, and joins his party along with Reinhold until the Kooluk are dispatched. - KoRnholio