Keys that the Guardian of The Underworld forged himself in the realm of Tartarus. With his energy, blackened flames and the blessings of his grandfather, Tartarus, he made the keys and granted each one their own ability.

With the cuff in the weapons page, the keys can be controlled. Or the Staff of Lucifer can also activate the keys.

With each movement, The keys chime as a heavenly sound. But to the untrained eye, they would look just like any other plain ordinary keys. If you are able to see their truth, you will see brillance.