The 9 tailed Dragon Emperor (DxD)

Issei Hyoudou, a nine tailed fox yokai born with the boosted gear and an ancient beast sealed within him arrives in the town of Kuoh but for what reason and how will he react to the fellow yokai girl.

Satans Spawn (High School DXD X OP OC!

May have been a while, but this one's gonna be fresh. Ryu Lucille. Much different from you're average 17 year old High Schooler. Usually keeps to himself, get's good grades, never shows any interest in others. Though no one would expect for him to have a secret that should remain just that.