Oliva Biscuit  

the Dark Arrow, Unchained, ビスケット・オリバ

An assassin who serves the US government has an almost indestructible body made of iron, making him nearly invulnerable to any attack. While carrying out a mission to eliminate a drug cartel leader, he encountered Yujiro. This individual possesses a unique ability where he can transform into a ball of muscle that renders him immune to attacks. He can then uncurl and seize his opponents, consuming them whole like Pac-Man before crushing them with his immense strength. His physical attributes are modeled after the legendary bodybuilder Sergio Oliva, who won three Mr. Olympia titles.