Raizo is a professional ninja. No seriously, if he had a business card, it would be a shurkien. And you wouldn't be able to contact him. Cause you'd be dead if you met him. Because he's a ninja. Anyway, he was raised as a ninja after being orphaned by his parents. Trained and then betrayed by The Clan of the Black Sand, Raizo is looking for revenge. Fortunately his old clan is hunting for a forensic investigator that is right on the cusp of revealing the existence of ninjas so Raizo decides to kill (haha) two birds with one stone and protect Mika while exacting his revenge.