BLK-661 GAL teacher Kurosaki Hana uses black teaching techniques on students, including creampie sex

Dragon GAL's motto is that only stupid, ugly, and unpopular guys should go to Tokyo University, and Ms. Kurosaki Hana teaches students about their penises using her black techniques. She makes the most problematic student lick black abalone, gives a titjob to the underachiever, and has continuous creampie sex with the most sexually capable student. She seduces and does it anywhere in the school, including the nurse's office, gym storeroom, and classroom.