Swimmer Mask

Swimmer Mask (also referred to as Mr. Swimmer by Yayoi Kusakabe) was a mask controlled by Mamoru Aikawa. He is a tall and very muscular man. He only wears speedo as his clothing, albeit he also has a swimming goggles and a backpack. Swimmer Mask is brute and loves violence. He's obedient, though, to his superiors and will only go berserk when he got heated up in battle or being told so.