Tsukasa Aoi, who is said to have a stronger sexual desire than most people, abstains from masturbation and sex for a month, and her perversion and lewdness reaches its MAX! With her horniness at an all-time high... she delivers her to the home of an ordinary man who boasts of his virility! The man works for a certain company and has a completely passive M-man personality. It turns out... they have perfect sexual compatibility! An abnormal sex scene between a lewd older sister who treats a penis like an adult toy and releases her sexual desires, and a masochistic man who gets excited by being treated like a toy!