"Keeping it secret from her husband... the impulses of middle-aged married women accepting strange cocks." Masumi, 51 years old, 26 years into marriage. Her once-stable married life gradually grew distant after having children. After childbirth, their sex life completely dried up. She started working part-time at a convenience store, where being treated like a woman again by the store manager stirred her emotions, leading to an affair. But five years later, that relationship also came to an end. Since then, she's had almost no sexual stimulation. Lying beside her sleeping husband, she continues to pleasure herself—but fantasies alone are no longer enough. Women in their fifties like her aren't satisfied with mere sex; they crave new excitement. Wanting to value themselves and keep living life to the fullest, they take on new challenges through the guise of an AV audition.