One day, Karen, a new teacher, visited the house of Hiroshi, a student who was refusing to go to school in the class he was in charge of. The school had abandoned Hiroshi, who had once caused a problem in the school, but he came to visit his home over the opposition of his fellow teachers. However, as soon as Hiroshi welcomes Karen in, he makes her drink tea containing sleeping pills. Her father, Koji, who appeared in the middle of her act, and her bad friend Suzuki, and the three of them, exhausted Karen.
