Newly appointed teacher, Mio Shinozaki. During class, she slaps and subdues a student who is the son of the PTA president! It becomes the talk of the school, and although she kneels and apologizes, there is no forgiveness, and she is forced into a harsh situation. This marks the beginning of her hellish days. She is subjected to anal penetration with fingers, anal pearls, and vegetable dilation by the PTA parent and child, and her gaping hole is stuffed with a penis. Double penetration that starts to bring her to climax!