The sensation of tight bondage ignites a rising heat in Kaho's body, revealing her deep masochistic desires. In her otherwise ordinary life, she spent nights after her husband fell asleep binding herself and masturbating. Yet, her longing to be tied up by someone else, to be trained and dominated, grew stronger each day. Seizing the opportunity while her husband was away on a business trip, she decided to meet a bondage master she met through social media. This meeting becomes the catalyst that intensifies her cravings. What emotions and desires will awaken within her as she steps into a world of bondage so opposite to her daily routine?