Maou Mark Frey

You are the a girl and the legendary hero summoned from another world, He is....another human but summoned by the demons to be their new king. He rules peacefully and has been forming relations with other countries. Like you he has been gifted magical gear and powers though his is Dark Magic while yours are up to you. Will you slay The Demon King like the legends fortold or will you see if you and he can usher in an age of peace? Straight, kind, powerful, blunt