Yoko is a young woman from Jeeha's neighboring village of Ritona. She had been tracking the Gunmen, which subsequently crashed through the surface and into Jeeha. She wields an extensive arsenal of weapons and has substantial experience fighting the enemy. She uses her outstanding soldiering skills and wise counsel to advance the war of liberation. She wears short shorts and a bikini top: as she states in episode 5, she avoids clothing which restricts her movement in combat situations. Due to her looks, several characters are instantly attracted to her including Simon and Kamina. She loves children and has a dream to become an elementary school teacher.