"I get the urge to have sex when I'm stressed," says 35-year-old Yui Furuya. As a stay-at-home mom raising three consecutive brothers aged 2, 3, and 4, her days are a whirlwind of activity. Amidst the chaos, the only solace she finds is in intimate moments with her husband. However, with her angelic-faced children sleeping peacefully beside her, it's hard to get in the mood, and many times their innocent presence prevents her from fully enjoying herself, leaving her unsatisfied. As the days go by, her pent-up desires grow stronger, leading her to seek an outlet for them. Today, she's here to unleash her frustrations by having sex with a stranger, having entrusted her children to her parents' care.