Pet Life

After physical education class, a classmate mistakenly places Shizumori's underwear in the wrong locker. This forces Shizumori to spend much of the school day without any undergarments. She later returns to the locker room, where Ozaki surprises her by sniffing her underwear. He returns her bra but discards the remaining items on the floor. As Shizumori bends to retrieve them, Ozaki takes a photograph of her exposed state. Using this image as purported proof of exhibitionism, he proceeds to blackmail her into sexual acts.