Koi’s head takes on the appearance of a koi fish, with fins and smaller spines than the other heads, and smaller horns. Her scales are white with orange and black splotches all over, with a noticeable round spot around one eye. Her eyes are yellow and her teeth are small, but razor sharp. She dislikes fish and meat and prefers fruit, so her back teeth are more suitable for chewing tough-fleshed foods, like the tough peels of mangoes and papayas. She can even bite through the pits of peaches. Her white scales spread down onto the body’s right shoulder, though it extends no further, leaving the remainder of the body a jet black with little variation.

Hellfire is jet black, matching his body, though he has crack-like markings on his scales, like fissures filled with lava. His head is lavishly decorated with black horns, with spines that go down his neck and back. He has a long set of fins along his throat, which flare out and extend when he roars or breathes fire. His eyes are yellow, and his jaw thicker than the other heads, with long, sharp teeth made to rend and tear. He’s more defensive than the others, and fiercely protective. He lays at the bottom of the pile when all three of them sleep.

Luci (Lucifer) is mostly black with a sooty grey face, white spots scattered all over like stars, which spread onto his shoulder, but no further. His spines are short, and go from his head to the base of his neck, slowly growing in size. He has a spot of orange on his nose and fins on his cheeks and throat, the ends a lighter grey color.

The hydra’s body is jet black, accented by orange and white, with two broad wings and a long tail. Their hind legs are shorter than the front’s, which are much bigger and bulkier to hold their three heads. They can fly. On their legs are thick spikes, and their claws are long and sharp, with padded toes to protect the bottoms of their feet and to provide cushioning from their weight when they walk.

13 feet from nose to tail, 4 feet at the shoulder, 20 foot wingspan.

Koi is very shy and tends to keep to herself. She is colored more like a koi fish, with black, white, and orange spots. She identifies as female despite her body’s male genitalia, and tends to only take control of her shared body when in dire circumstance, like the other heads being unable to control the body or when she deems it necessary to do something drastic (like whack the other heads with her tail when they fight too loudly.)

Hellfire ~ Second head, the middle one.

Hellfire is the Alpha of each head, and tends to bully the others in order to get his way. He dominates their body, often controlling it unless subdued or distracted. He bickers the most with Luci, who butts heads with him over nearly every decision. Very rarely do they come to an agreement, often meaning that Luci has to make it for them. He is a leader, though he can be soft with Koi and Koi, though his temper flares easily when provoked.

Luci ~ Third head, the rightmost one.

Luci is the most selfish of the heads, surprisingly. They claims they don’t care for the others, but they do. It only really comes out in dire circumstances, or when Koi brings theirs and Hellfire’s heads together in a harsh motion of discipline. They controls the body the most after Inferno, though mostly when the other is asleep and they're scheming. They are very vain, taking time to decorate their body and clean it to perfection, often forcing control over just to groom