One day, Miku, a new teacher, visited the home of a student, Eusei, who was refusing to go to school in the class he was in charge of. However, as soon as Eusei welcomes Miku, she makes her drink tea with a certain 'compound', makes her faint, and lays down. Her father, Koji, and her bad friend, Kai, also appear there, and they thoroughly get involved. On top of that, Koji, who is a black money dealer, comes to Kudo and the others that night, and instead of repaying the debt, he offers Miku...
