The Testament of the Rosario DxD: Issei hyoudou the Makai Knight(Small Haitius)

After issei had defeated Riser Phoenix in the battle for Rias gremorys hand in marriage, he was betrayed by Y/n Hater and Sirzechs, not only forcing Rias to marry Y/n Hater, but also taking his sacred gear, the boosted gear, and leaving him to die. Luckily for him, Ddraig sealed a portion of her life force inside him. Leaving him in the cold rain to die, confused, and scared Issei started to give up. Who was he? What is he? Thats all he could think of. Laying in his pool of blood, and dying slowly. But he was saved by a man that claimed to be his grandfather. This is the story of the Makai Knight Issei hyoudou, The shining darkness shadow Knight, and the golden savior. issei will be like Jinga from Garo, he was once a powerful horror in his previous life, but he got defeated by the Messiah. And was reborn as the red dragon emperor, In born into a powerful family of Makai Knights.