A magical world populated by supernatural creatures exists alongside ours. Once in a while a portal between the two opens. Demons known as BEMs ("big-eyed monsters") have stolen precious jewels and escaped to Earth through that portal. It is up to two demon hunters, Lime and Bass, to assume the likeness of a teenage girl and boy and restore peace and order.
The fifth episode of the series is, like its predecessors, an interactive cartoon with visual novel elements. The interaction is sparse, consisting of repeatedly selecting simple verb commands from a menu and triggering animated cut scenes.
In this episode Lime and Bass witness a strange incident in the school: for an unknown reason, female students are losing their clothes. The heroes immediately realize that the magical prank is being performed by a BEM.