Yumi felt suffocated by her husband's control… She had been married to him for 26 years. They had two children, who were already independent, and the couple lived a fairly happy life together. However, several years ago, her husband started to become controlling towards Yumi as he accumulated stress from competition at work. Because of this, Yumi was forced to quit her job and became a full-time housewife. On top of that, she wasn't allowed to go out, and the only time she could relax was when her husband went to work during the day. One day, while complaining about family troubles, a junior colleague introduced her to a website. She felt stressed by her husband's control but didn't want a divorce... But... I'll suffocate if things keep going like this. Right... Yumi was looking for 'convenient fun.' Just then, Yumi heard that 'the number of women wanting to be tied up is increasing.' Pushed by a junior colleague, despite feeling guilty, Yumi took her first step into the unknown. There, a new world was waiting for Yumi... Yumi, who had been suffering from restraints, opened up to unknown sexuality by being bound.
