Ordered to stay after class while still wearing their bloomers by their gym teacher, they are forced to obey. However, the discomfort and confusion brought on by these actions gradually begin to shake their minds. Straddling the teacher, they remove their own bloomers and move their bodies as demanded right there on the spot. It's not something just anyone could do, yet they find themselves drawn deeper into the situation. A shocking development unfolds, realistically portraying their shifting emotions.