The Kijyu Demon Clan launches a brutal assault on the Tenjin Clan to force Lord Onimaru into becoming the King of the Kijyu Keeper. Amidst the destruction of their temple and the spread of a lust-inducing spirit across the city, Onimaru is kidnapped by the enemy. Before passing away, the clan's grandmother entrusts Ai and Mai with the mission to combine their powers and rescue Onimaru, the only hope for saving the world from the Kijyu's reign of desire.