Bone

Bone is a brawny hero who fights in a skin-tight bodysuit printed to look like a full human skeleton.

A glory-hungry sort typical of the association, Bone chases renown above all else, taking on Mysterious Beings in the hope of building a reputation grand enough to be handed down to future generations.

Bone's spot near the bottom of B-Class marks him as a fairly ordinary combatant by the class's standards. His signature is a naturally dense bone structure that armors his body, which he can harden further for a short spell by downing milk or other calcium-rich food. It was still not enough against the Demon-level Hundred-Eyes Octopus, whose blow shattered every bone he had, though he endured the hit and survived. His speed has its moments too, as when he snatched Red Muffler clear of a bus that the octopus had hurled.

He turns up in several skirmishes across the series, from that losing stand against the Hundred-Eyes Octopus to later defeats beside other heroes against the Internet Surfers, and he favors fighting with his fists at close range.