Mirela stumbled back forth as the light was too bright even when you turned away from it. She faced the demon in a defensive stance, both hands gripping the sword. She glances at the IT guy who was still surprisingly in the room but was on the phone. She assumes that he's calling the police which would spell even more trouble for her if more non-magics got involved. 
But for now her main focus would be getting rid of the demon in the room. Luckily his attention was now focused onto her. She has never faced a demon head-on before, and she was pretty sure it would take more than a sword to win this fight.