Eijiro is a boisterous and outgoing guy with a fondness for manliness. He is very honest and kind-hearted, having a straightforward way of thinking and following a specific code of chivalry that motivates him to live without regret. Thanks to his Quirk, Eijiro's straightforward and reckless fighting style lets his hardened body take opposing hits while delivering counterattacks. Even bullets cannot pierce his skin when his Quirk is active, so that Eijiro can turn himself into a shield.