Karasu tends to look down on people he find 'mediocre'. He has dark blue hair with purple tips and blue eyes. He is intelligent, but has a sharp tongue and never misses a chance to insult someone, whether friend or foe. He has his own rules that he forces upon others to make matches go as planned. He dislikes it when anything goes wrong even if it doesn't make a big difference so it looks to others like he is always complaining. He hangs out with his friends Hiori and Otoya. He is 18.