Leviathan (レヴィアタン Revu~iatan) is the world's strongest beast; a living weapon of the times of the gods.
Leviathan is an enormous sea serpent with a length of 4,000 meters and is a mixture of flesh, magic and ancient lost technology.
it has six glowing red eyes atop its head and rainbow like fins going down its entire length.
The true history of the creature is unknown however as a weapon of the 'gods' it is possible that it is a creation of the ancient Deva
As the strongest living weapon to have ever been created Leviathan possesses enormous combat abilities allowing it to shrug off even the attacks of a Progenitor class Beast Vessel.
Leviathan has a number of attacks available to it;
Energy Beam: Leviathan is capable of releasing enormous beams of energy from its mouth that can devastate anything it touches.
Missiles: The strongest living weapon can also release large numbers of missiles from its back.