Eighth, the Dragoon

Through tragedy, Issei awakened a power which places him as a Predator, one of the most dominant beings on the planet. As the Eighth, he must defend the planet from a force beyond his current means. Ideals clash, blood is shed, and hearts are broken in his struggle to protect those he loves most dear. But he can do it. He has become Y Ddraig Goch. (Slight AU, OP Issei, OCs inside)