Kosuke struggles to keep the "devil's seed" within him from awakening while the goddesses Fauna and Jordh attempt various methods of purification. However, a mysterious herbal medicine provided by his building manager triggers erotic delusions and places a magical barrier in his body, preventing the ejaculation necessary for his cleansing. With the help of Astra's blooming spell, the goddesses fight to break the barrier and purify Kosuke before a hidden enemy can successfully revive the devil.