Kamen Rider Crimzone!

AU: Adrian Takeuchi had lost his father at the hands of a race of monster called Vangakyo and after Sir Vathek, a knight who was also a Krimgire, saves his life, Adrian must now embark on a journey to become the next Krimgire King as Kamen Rider Crimzone, but Danny Phantom will be helping him out too. Rated M for content and language. Will contain horror, sex & more. See it on AO3!