Karasu is a tall and lean young man with dark blue hair with a spiky purple top and has a mole under his left eye. He also has blue eyes. His appearance is supposed to somewhat resemble a crow.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 smirk