You all know the gist, a random teen is Inserted in the world of dxd as the older sibling to the main character, this has been done so many times it hurts, But now, it's my time to shine, and Ryu Hyoudou must take on the world, and challenge that faggot Sirzechs to a 1v1 as per the request of the dragon in his head. (Si-Oc) (Self Insert) (Fairly Op Oc)