Highschool DxD: Queen of the Damned

Rias Gremory, heiress to the Gremory Clan and Crimson Princess of Ruin. A woman with big breasts and even bigger dreams. Unfortunately for the young woman she's constantly been in the shadows of others, being compared to her older brother who rose to the rank of Lucifer. Not to mention her pawn who at one point was nothing but an inexperienced and naive young man, but quickly turned into the hero of the Underworld. A man she once loved but was quickly swallowed whole by his overwhelming shadow that no matter how hard she tried to escape couldn't seem to find her way.

Rias has always worked hard, many simply refuse to believe it. Devils have always spoke of Rias's looks and not her brilliance, yet no matter what she did no one took her seriously.

What is a young woman to do when not only the world, but their family and friends turn their backs on them, dismissing their dreams and hard earned effort. They turn to the darkness within themselves, which is exactly what Rias Gremory did.
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On Rias and Issei's wedding day the crimson beauty hears one of her close friends speak of her soon to be new title "you must be so grateful to be marrying the hero of the underworld, you'll be known as his wife, how lucky". At those words Rias finally just gives up. Why try when no one recognizes your efforts. At least that's what she thought until a screen like those in video games and anime appears before her. "Rias Gremory has been chosen as Lilith's successor. Does Rias Gremory accept the Succubus System?"

With nothing else to lose Rias accepted and it was the best decision she ever made. So come on and follow Rias on her steamy journey as she builds up her own harem of women while putting pathetic men in their place. Rias Gremory will show everyone who foolishly dismissed her just how determined she is to reach her goals and become the new King of the Underworld. Soon everyone will know of her and her titles; she's the Queen of the Damned.