The Blue Eyed King of Kuoh

First story, criticism in most forms is appreciated and heard. I also have a love hate relationship with Grammar, so expect punctuation errors. I apologize for that in advance.

What happens when a mysterious man shows up on the Gremory estate's front door with a strange request?

How different would the story be if Rias grew up with not one, but two close friends? And what would happen if this mysterious addition isn't what they seem?

New bonds will be forged, cataclysmic powers unleashed, and one boy's heritage could disrupt the balance between the 3 factions.

This is a story of truth, friendship, romance, and plenty of super powered shenanigans.