One fateful night, you look up to see a mysterious creature being attacked - a dragon! Despite your efforts to help him, there’s nothing a mere human can do to fight against his assailant. As a last resort, you agree to let the dragon drink your blood.

He saves you in return, but you soon find yourself facing another problem. A strange emblem has appeared on your skin, prompting the dragon to spirit you away! You land at a mansion to find a group of men claiming to be Guardian Dragons. According to them, you are a special being who possesses something called the Blood of the Covenant…

They ask that you release them from a contract you don’t remember signing and return their true names, but you have no idea what any of this means. With the wheel of fate already set in motion, will you learn the truth behind the Guardian Dragons and your connection to them?