Since moving to the new suburban house, Niiyama has started to attract attention from the perverted, lecherous neighbor next door. It's because she often dresses provocatively, wearing thin, clingy clothes that highlight her prominent breasts and buttocks. The incident occurred on a beautiful morning while she was out for a walk, he began to follow her in order to find the right opportunity to carry out his lewd behavior. Danger was imminent, but she was still very naive and unaware of what was happening. The climax of the story came when she returned home without locking the door, which was the key to the story. He stealthily entered the room, surprising and alarming the young girl. He began to strip off her pants and shirt from her helpless, white body, then went further using the strength of a young man overpowering a weak girl. Helpless, she didn't know what to do other than struggle and moan in frustration.