My father brought home a tattooed woman who clearly didn't look like any ordinary tutor—where he found her, I'll never know. Despite her appearance, she actually taught well, but my son's stupidity exceeded all expectations. Fearing for her income as a private tutor, the teacher devised a new study method exploiting her student's lustful nature. She wrote kanji characters on parts of his body and made him memorize their readings, then taught him words like "handjob" and "blowjob"—soon demanding he practice them in real life. Through these bizarre lessons, the son begins to awaken to something entirely new...