Desiring sex intensely and wanting to do it every day but not being able to, Kaori, his wife, felt lonely. One day, an unfamiliar package arrived. Upon opening it, she found a sexual enhancement product called "Lamb's Testicles." Delighted, believing her husband had bought it for their nights, she drank one, then two bottles. Then, the delivery man rushed back, flustered, saying the package was meant for the neighbor. It was too late. The effects of the enhancer quickly took hold, and Kaori, finding fault, clung to the delivery man's penis...