Hentai tells the story of unhappy girls living in a boarding house. They become sex slaves of Tagiba Kagetora, who possesses them with the help of special sperm. This sperm causes constant arousal and desire for sex in girls.

The teacher, who is an Inuit representative, is an attractive and tall young man. He is polite in communication and sometimes shows attention to others, including women. He is always ready to help if necessary, and does not mind cleaning.

Japan has serious demographic problems. To solve them, they decided to open a special school in one of the cities. The main character Akihito got there along with his younger sister Umi. Now he has to save the city and its inhabitants.

This animation project consists of three episodes. The main character is Tetsuya, who was expelled from an educational institution and feels strong resentment towards all the staff.