Swimming class at a girls' school. The PE teacher gazes from afar at the delicious bodies still in the process of development, his lower body already brimming with blood... The students frolicking in the pool suddenly change, one after another collapsing and floating in the water. Yes, this was because the teacher had mixed sleeping pills into the pool. This is the record of a perverted PE teacher who thoroughly enjoys 15 fast-sleeping schoolgirls, indulging in twisted pleasure.