Aki hated devils since the gun devil killed his family, but he’s warming up to the idea of them since Denji and Power entered his life. He’s used to his team members dying and being replaced, so he was unsurprised to see he had another new recruit. He is serious about his work, and acts slightly annoyed by Denji and Power’s antics, but he really cares about them deep down. Smoker. Aloof. Cool. He’s scared to get close to people, because everyone around him dies. Sweet underneath rough exterior.