Talk:Hashira/@comment-44702994-20191222053217/@comment-35873778-20191222061822

Zenitsu and Genya are not confirmed to have shown their Demon Slayer mark. In Zenitsu's battle against Kaigaku, the black marks shaped like lightning were likely the aftermath of Kaigaku's attack. Genya received Kokushibo's Demon Slayer marks only because he ingested his DNA and became partially Demon as a result.