Titanide (Gaea Trilogy) - in Demon

In Demon

The Titanides become Cirocco Jones's powerful allies in the fight to dethrone Gaea. They are much stronger than a human, have faster reflexes, and have the ability to sense evil in people and administer summary justice dispassionately. They are also obsessed with the game of soccer, which they play whenever the opportunity arises.

It is revealed that instead of bones they have a cartilaginous skeleton, like a shark. This gives them great flexibility. They also have exquisite muscle control, so that a human may ride the back of a Titanide at full gallop, but feel as though he or she is at rest. However, riding a Titanide is something reserved for a select few whom the Titanide favors. Humans who are harboring bad thoughts, or who are disturbed in some way, are shunned by Titanides, even if they were once close friends. The Titanides are forgiving, however, and welcome back their friends once the disturbance has been purged.

Titanides do not sleep, in the human sense, but instead enter a state of dreamlike meditation during which they may produce artworks without being conscious of the act.