Please help me find this Fanfic. [2]

Summary of what I remember:

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Tags that I think it might have:

[Fanfiction], [Highschool DXD], [Harem]

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Guy reincarnates into the "Highschool DXD" world with a system that gives him a fake "Lucifer" Bloodline by letting him use the "Lucifer" magic circle which shocks "Sirzechs Lucifer" and the others... If I remember correctly he gets the true bloodline from a quest... I think he marries "Rias Gremory" and sleeps with "Akeno Himejima". I think he might have the "Booted Gear" as well.

That's all I can remember

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