An engineer for the infinity train. Like the other staff, he'd been manipulated by Enmu into preventing the Demon Slayers from attacking, which he does when Tanjiro and Inosuke discover Enmu's neck bone at the front of the train. When the two of them slash Enmu's eyes, he attempts to stab Inosuke, but is intercepted by Tanjiro and subsequently knocked out. After Enmu is killed and the train crashes, Tanjiro sends Inosuke to ensure he's okay despite Inosuke's protests, since he feels the injuries