Husband Shinichi was preparing a surprise ahead of his third anniversary of marriage. One day, a man named Yoshino of self-proclamation appears before his wife. He stubbornly persisted, forcibly bring her into the hotel who got drunk at a drinking party ... .... Weakness was grasped still like the everyday as I was asked for the body, I gradually began accepting SEX like Yoshino's beast. And the wedding anniversary we greeted, that appeared before Shinichi 's eyes waiting for my loving wife hiding in the closet ....

結婚3周年を間近に控え、サプライズを用意していた夫の慎一。そんなある日、妻・なおの前に自称許婚の吉野という男が現れる。彼は執拗につきまとい、とある飲み会で酔い潰れてしまった彼女を強引にホテルへ連れ込み…。弱みを握られてしまったなおは毎日のように身体を求められ、吉野の獣のようなSEXを次第に受け入れ始めてしまう。そして迎えた結婚記念日、クローゼットに隠れて愛する妻を待つ慎一の目の前に現れたのは…。