〇Toyoshima Shinharu: A woman with a transparent, fair skin and beautiful face. She usually works as a beauty coordinator in the beauty industry. However, her private life is far from the delicate atmosphere she usually has. The problem is her husband who is a mama's boy, and she lets her mother-in-law decide everything they should discuss as a couple. Now, her house, car, and even the time for making children are all decided by her mother-in-law. Because of this, she wants to escape from the suffocating feeling in her private life and came to this place today.〇Kitamura Machiko: Currently married with two children, but because of her husband's cheating habit, their marriage is cold. "Until my children become independent," she made up her mind to continue her current life. But sometimes she wants to relax, so she goes out drinking with her mom friends more often. By chance, she had a physical relationship with a man she met at a bar, and they ended up in a double affair with both her husband and her. However, after experiencing the thrill, she started wanting even more stimulation.