He pursued AV filming as a hobby, and while walking the streets, he constantly searched for new big-titted models. What particularly fascinated him was the phenomenon of women's breasts undergoing dramatic changes due to pregnancy and childbirth. Deeply aroused by this transformation, he had been scouting for potential candidates among women visiting obstetrics and gynecology clinics. For several days, he had been visiting hospitals around his neighborhood. Then, one day, a sight caught his eye—one that delivered an unprecedented shock.