The world of humans and demons has been at peace for some time, but a new threat emerges as a demon cult gains popularity. It becomes clear that the demons no longer wish to live in harmony with their human counterparts. The player takes on the role of an unnamed hero, aided by a heroine, who must bring about a return to peace.
The heroine possesses a unique ability: she can communicate with demons encountered during random battles, persuading them to join her party. Demons come in various races and species, and the game features standard turn-based combat with physical attacks and magic spells.