In her forties, married woman Hitomi grows increasingly frustrated by her husband's indifference. Her longing for him to tie her up with rope like he used to grows stronger each day. Though she's aware of these feelings, she quietly suppresses them deep inside, trying to protect herself. One day, a saleswoman unexpectedly arrives, peddling corrective underwear. Pressured into wearing it, the tight sensation reawakens long-forgotten pleasures and memories, driving Hitomi to crave bondage more intensely. Entrusting her desires to the restrictive garments, the mature wife gradually becomes addicted to the feeling of being tightly bound, once again stirring her inner emotions.