After turning forty, one might think that sexual desire would settle down, but Rieko was tormented daily by the heat rising from deep within her body. Moreover, she always released this desire through fantasies of infidelity with her daughter's boyfriend, Koji. Her lust knew no bounds and eventually... Afterward, Rieko forcibly joined her daughters' hot spring trip. Drowning in her desires, she boldly seduced him, stealing glances from her daughter, trying to make him hers. Captivated by the lewd display of an adult woman, Koji was drawn in time and time again.
