Miki felt suffocated by her husband's restrictions... She had been married to her husband for 12 years. Although they were not blessed with children, the couple lived a relatively happy life. However, about five years ago, her husband, who had been stressed out by the fight for promotion at work, gradually began to restrict Miki. Because of this, Miki was forced to quit her job and became a full-time housewife. She was also forbidden from going out, and her only way to relax was to go out during the day when her husband was at work. One day, when she was complaining about her family life to a junior colleague, he pulled out her true feelings. She felt stressed by her husband's restrictions, but she didn't want to get divorced... but... she would feel suffocated if things continued like this. Yes... Miki was looking for "convenient play." At that time, Miki learned that recently "the number of women who want to be tied up is increasing." Pushed by her junior colleague, Miki took a step into an unknown world, even though she was reluctant to leave due to a sense of immorality. A new world awaits Miki there... Miki, who had suffered under bondage, is able to release a new sexuality that she had never known before by being tied up.