69: Itsuwari no Hohoe / Sixty-nine: Fake Smile

The main character of the hentai is an honor student girl named Aoi Midori, who tries her best to maintain the image of a diligent and hardworking student. However, her grades have dropped sharply and this has put her in a difficult situation. Aoi decides to achieve better results by blackmailing teacher Izumi, but her attempts are unsuccessful...