Through Hand is a male antagonist with multicolored hair, introduced first in the series. He wields the EX-ARM 08 weapon, granting the ability to pass through solid objects directly in front of him by touching them with his robotic hand. This ability functions only forward; he cannot pass backward through obstacles. This directional limitation creates a critical vulnerability exploited during confrontations, leading to his defeat by Minami Uenozono, Alma, and Akira Natsume.

He appears in both the anime, in a supporting role, and the manga, in a main role. His character uses the EX-ARM 08 antagonistically. The defeat stemming directly from his ability's constraint stands as his most prominent narrative outcome.