As a Pet / PET LIFE

Based on the manga  Kusatsu Terunyo. The main character Shizumori accidentally put her panties in a different locker and spent the rest of the day without them. And of course, according to all hentai canons, another pervert couldn't miss such an opportunity, which turned out to be her classmate Ozaki-kun. He turned her into his slave, blackmailing her with a photo of her without underwear...