In the Showa era, a promiscuous woman lives a daily life luring men with her old-fashioned charm and drawing them into her whirlpool of desire. Living in a small town, she invites men she meets into her home, engaging in intense sex as they sweat in the sweltering heat. Amidst this routine, she finds herself falling for a young man. Yet, her relationship with him becomes trapped in their usual sexual encounters, making it impossible for her to let go. Her lonely and heartbreaking daily life unfolds in this story.