It supposed to be normal routine for Hyodouu Issei when he stumbled upon another fallen angel again and he supposed to die that night. What happened when on the brink of the death, he met a stranger who supposed to be his new classmates and also saving his life that night?

The World that Noctis Lucis Caelum is living on is so not ordinary, after all. As the associate of the Rias Gremory's peerage of Devils, he'll make new friends and enemies while acquiring new power in the supernatural world.

AU. There has always been legends of the red and white Dragon Emperor, That have Swept a path of destruction wherever They have gone for millennia but what if there was a third, One who held the power over light and darkness and the power to bring both to their knees. This is the story of the rise of the Black Dragon Emperor, the Dragon of Life and death. Strong OC.