Miki felt suffocated by her husband's restrictions... I've been married to my husband for 12 years. Although we haven't been blessed with children, we've lived a fairly happy life together. However, about five years ago, her husband, who had been accumulating stress from the promotion battle at work, gradually began to control Miki. As a result, Miki was forced to quit her job and become a full-time housewife. She was also forbidden from going out, and her only respite was going out during the day when her husband was at work. One day, when she was complaining about her family life to a junior colleague, the junior colleague brought up Miki's true feelings. I was stressed by my husband's controlling nature, but I didn't want to get divorced...but...if things continued like this, I would feel suffocated. That's right...Miki was looking for a "convenient game." At that time, Miki learns that recently there has been an increase in the number of women who want to be tied up. Encouraged by her junior, Miki takes a step into the unknown, even though she is reluctant to do so due to a sense of guilt. There, a new world awaits Miki... Miki, who had been suffering from bondage, is released into a new sexuality by being tied up.