After a lonely divorce leaves him feeling empty, a wealthy middle-aged man encounters Miho, a student from the Holy Marian Girls Academy—a school secretly renowned for its promiscuous nature. This chance meeting awakens his dormant desires, transforming him into a "carnivorous" man. As he embraces his new role as "Papa," he dives headfirst into a world of hedonism and forbidden pleasure alongside Miho and her classmates.