Zack Walker ザック・ウォーカー
Height: 185 cm (6'1")
Weight: 76 kg (168 lbs.)
Eye color: Blue
Hometown: Mousanish District
Zack is a genius with an IQ of 200 whose field of expertise is space science. He even has a spaceship pilot's license. He and Quitterie have been friends since they were little due to their parents being coworkers.
