A man with an abnormally high sperm count and unstoppable erections. Investigations revealed him to be a unique individual, one in ten thousand, and he was invited to participate in research. The female doctor was astonished by his incredible resilience, regardless of how many times he ejaculated. One day, during a procedure, semen accidentally splashed onto the doctor's face, leaving the skin smooth and supple. She unexpectedly discovered that the semen contained a large amount of components with remarkable skin-beautifying effects. From that day on, through semen collection and facial ejaculation, intertwined with her own desires, the doctor thoroughly drained his abundant semen… a total of 18 ejaculations! Sakura Momoko, feeling delighted, continuously received the abundant semen with a smile!