Despite being dissatisfied with her husband's lack of attention, 37-year-old Sayuri Akina exudes charm with a luscious body and elegant demeanor that belies her age. It's been nearly five years since she last had sex with her husband. The reasons behind this remain unclear, leaving her quietly wondering why he no longer desires her. Though she once deeply regretted straying, as time passed, her urge to cheat became impossible to suppress. Recently, she's been involved with several sexual partners, yet no matter how much she indulges, her desires show no sign of fading. The reason she volunteered for this production was to seek even greater excitement.