Due to the economic downturn and her husband's reduced income, Shiho, a certified yoga instructor, decides to start a yoga class at her home. During a session, she invites her son's stiff friend, Hirose, to assist with stretching exercises, but he becomes aroused and forcibly has sex with her, taking explicit photos of her naked body after creampieing her. The photos are seen by the neighborhood association chairman who was present, and he ends up sending them to Shiho. Later, the chairman brings a friend to attend a yoga lesson, shows them the photos, and the two men take advantage of Shiho's flexibility, engaging in acrobatic sexual acts with her. The video portrays Shiho's emotional turmoil as she experiences sexual pleasure for the first time in a long while.