Saki
The place where Saki had gone to, looked nothing like the academy they were at a moment ago. The sky was pitch black, without any stars, the sun or the moon. The air smelled heavily of smoke and fire.
The two were standing on a glass-like tower, which was connected to a massive glass fortress, below them was a scorched land, one could see traces of former cities, forests and rivers below.
As the guy stepped in, and tried to grip another of Saki's barriers, she simply stepped back, outside of his grasp. Only to disappear and reappear on the far side of the tower, facing the burning world.
"This place is Makai."
She turned around to face him.
"A burning world of empty dreams, I doubt anyone would mind if I caused destruction here... You however, should be worried, western demons are weak here."
She jumped backwards, off of the edge of the tower and immediately started floating.
"I suppose you'll give up sooner or later though."
Behind her, numerous magical circles started to appear out of thin air, and their numbers continued to increase, all ominously pointing towards her opponent.