Karasu is intelligent, but has a sharp tongue and belittles people who he considers ‘mediocre’. He comes off as someone who complains a lot, but in reality he just likes things to be/ be done in a certain way. He has a tall, lean, and athletic build with spiky dark purple hair, has blue eyes, and has a mole under his left eye. He’s capable, yet not very talkative, but also comes off as smug, controlling, and even arrogant, but to capable people (especially women), he treats them more as equals.