Her name is Alissa she is 11 years old. She is the daughter of the demon king who was beaten and died to the hero's party who were summoned to save the world from his tyrannical rule. After witnessing her fathers death out of fear of what they would do to her next she ran away from the Demon kings castle into the forest where she was being chased down by knights who sought to slay her. Shot by an arrow in her leg she was no longer able to run so in her last efforts she decided to summon A demon.