Dominante tetona pasante es follada por sus estudiantes

The main character spends his boring school life in the shadows. One day, however, an intern student arrives. She is "Moe Tanaka," a cute girl with big tits. Although the cheerful students in the class get excited, the world is too different from that of the protagonist, who is a negative person. Whether the trainee or the transfer student comes, no change comes to his life.