Kalchas is a Raven, an independent mercenary that pilots an Armored Core mech. He is ranked E-28 in the Arena. A rare breed, Kalchas attacks exclusively with blade weapons. Because of this, his victory rate isn't high, but his unit does boast one of the most impressive flight durations of any AC in the Arena. He's a loner and keeps to himself. Coral Sky is an exclusively close-range AC, equipped only with the best of blades, the MARS physical blade and the MOONLIGHT, a powerful laser blade.