For Nishikawa Rion, the beautiful and demure office lady with big tits, her obsession with handsome men is over. She gradually realized that such men no longer satisfied her. A pathological sexual desire began to awaken within her, driving her to seek out ugly men and dirty, unattractive men instead. One day, she meets a lifeless, apathetic salaryman at a client company. Later, she encounters a homeless man struggling to survive in the park. Rion's abnormal sexual cravings capture these two worthless men like dogs, devouring them completely. Her frenzied, passionate actions reveal the ultimate peak of her insatiable lust.