My husband passed away a year ago, and though I took over management of the factory, business has steadily declined, pushing us to the brink of bankruptcy. In desperation, I recalled the design plans for a new type of vibrator my late husband had left behind, realizing that developing and selling this new product was the only way to save the factory. However, I soon realized that to create a realistic product, I needed accurate data of a penis. Troubled over how to obtain it, I finally resolved to sneak into my son Yuuichi's room in the early hours of the morning and gather the necessary information.