Iris (Senmetsumadou)

Iris (イリス, Irisu) is one of the main female protagonists in the spin-off Senmetsumadou no Saikyokenja series. Also known as the "Black Dragon Iris", she is one of the strongest Dragons alive.

Biography
It looks like a girl, but its true identity is a super-natural disaster-class dark dragon that appears in mythology. She has been involved with Matthias before his reincarnation, and at his invitation he moved to the Royal Second Academy.

There is no more common sense than Matthias, and because he cannot control fine power, he causes disaster-grade damage every time he tries to do something.