“Help, please!” Sumire, returning from shopping, heard a cry for help coming from a nearby factory. There, she found her son's friend, immobilized and restrained with handcuffs. Apparently, he was a victim of her son's prank. “The key is tied to my penis,” said her son's friend, bewildering Sumire. Deciding that she must handle the situation calmly, she resolved to pull down his pants. Confronted with the sight of an intensely erect adolescent penis, Sumire was taken aback.