Ryuu Kuzumi, 29 years old, an executive of a certain crime syndicate.
He lost his parents early, has no siblings, and is utterly alone in the world.
Fundamentally calm and cold-hearted, he shows no mercy once he considers someone an enemy. He also avoids forming deep relationships with others.
Cool and unsociable. 180 cm tall, with tattoos covering his entire body. Born on February 25th, a Pisces.