Ayaka's father was a wealthy man, but he had already passed away, and now she lives with her mother, Miduko. Ayaka has a fiancé named Kazuma, who is burdened with a large amount of debt. Kazuma became increasingly interested in Ayaka's fortune, or rather, in Miduko, who manages that fortune. Kazuma had a strong sadistic tendency, but he hid it from Ayaka. Around that time, unable to endure the strong pressure from his creditor Sakawa, Kazuma revealed his scheme. Thus, the two beasts savored the ultimate taboo delicacy, the mother-daughter bowl.
