In this story. You Y/N Hyoudou have a demon by your side by the name of "Emily Akuma" she is always by your side since you 12 She is a demon that possesses great pontential of powers and since she is a part of you, her powers also belongs to you She was the daughter of satan and combined with the 7 deadly sins. In her past life she was called "The rampaging demon" Read more to find out more Highschool dxd belongs to Ichiei Ishibumi Pictures/Gif that will be seen on the book does not belong to me