The world of Amphel, at the centre of which floats on its island the free city of Amporche, is an unstable universe. Reality tends to break up. To fix it, Magi use the elixirs that must be sprayed for the world to regain its substance. But Torriq, a young man at the University of Magic, unfortunately thinks less of his elixirs than of his feminine conquests! Suddenly, the arrival of monsters from nowhere changes a lot, and Torriq finds himself protecting Princess Murmillia.