Hina-sensei, who moved from Fukuoka Prefecture, has a modest and gentle personality, and is serious and sincere with her students. She is the best teacher I have ever met...or so I thought. But when I suddenly became close to Hina-sensei due to a certain incident, I discovered her true nature...When Hina sensei's erotic switch is turned on, she becomes more self-centered than her students, and she is teased in the teacher's hometown language and releases her sexual desire even when her lover is nearby. She is a bad example of what not to do...