In place of his parents who were going on a trip, Hiroshi's mother's best friend Mary came to take care of him. Hiroshi could only fidget at her beauty and stimulating body that far exceeded his expectations. Even if he wanted to get closer to her, Hiroshi had no immunity due to his lack of experience with women, and all he could do was stare in amazement at every move Mary made. Desperate to create some memories, Hiroshi thought of using underwear as material, but unfortunately got caught. To avoid getting scolded, Hiroshi tried to cover it up, but was instead provoked by Mary, "Weren't you thinking about doing something perverted with me?"
