Yuta recently moved into a new neighborhood, only to discover he is living right next door to his old college friend, Toru. Toru has been married to the stunning Kanna Fuji for four years, and he cannot help but brag about their active bedroom life. During their initial catch-up, Toru constantly boasts about how frequently they have sex, which deeply irritates Yuta, who is currently single and lonely. Seeking to show off his beautiful wife, Toru invites Yuta over for drinks, unaware that he is inviting the very person who will soon dismantle his marriage from the inside out.
Following that fateful night of drinking, the dynamic in Toru's house shifts dramatically. Kanna begins making excuses to avoid her husband, retiring early and rejecting his advances with increasing frequency. Where Toru once bragged about three sessions a week, he now considers himself lucky to get intimate even once. Toru, oblivious to the truth, meets Yuta for drinks to complain about his dwindling sex life and his wife's sudden lack of interest. He pours his heart out, lamenting his frustrations while his friend listens with a hidden, mocking smirk.
What Toru fails to realize is that the reason for his wife’s coldness is sitting right across from him. Yuta has been secretly seeing Kanna behind his friend's back, satisfying her desires five times a week and leaving her completely exhausted and uninterested in her husband's performance. This intense affair has turned Kanna away from her marriage, proving that bragging about your partner can sometimes lead to the ultimate betrayal. Watch this gripping tale of infidelity and secret passion as Kanna Fuji finds the satisfaction she has been craving in the arms of her husband's closest friend.
