A miracle that happened in a corner of a big city. Have you ever called a delivery health girl? What would you do if your cousin who you used to play with when you were a baby or your aunt who changed your diapers when you were a baby came as a delivery health girl? Wouldn't that be lucky? Wouldn't that be nice? It's incest, right? This is the story of men who had such a wonderful experience. All four of them have sex!