Ninja Ninja (ニンジャニンジャ, Ninja Ninja) is apparently the deuteragonist of the series (the main protagonist being Afro). Ninja Ninja is one of the most mysterious characters of the series, as he is known to suddenly appear or disappear at particular moments almost as if he was always or was never there, be it during a battle Afro is caught in, or when Afro seems to be almost completely alone. He is likely a figment of Afro's imagination to cope with severe psychiatric trauma from unbearable sights and actions of death. Being that Afro is an emotionless murderer, his mind may well have created Ninja Ninja to hold his other emotions excluding Anger and hatred ; He often hangs with Afro as his self-appointed "Road Dog". Another possible understanding of Ninja-Ninja that would also be relevant to