Black Dragon of Remnant

Issei was killed by Raynare but without Rias to resurrect him. His world is destroyed and all of his friends and loved ones are gone. So what does God do? He sends him to a new world that needs a hero like himself. He's given a second chance and the opportunity to be the hero he was supposed to be. And hey, maybe he can claim a pair of boobs or two along the way. Rewritten