One day, Mari, a teacher, visited the home of Yugo, a student who refused to attend school in her class, along with her husband and a philosophy teacher. The school had abandoned Yugo due to his behavioral issues, but despite his objections, he had come to visit his home. However, as soon as Yugo welcomed Mari in, he made Mari and Tetsugaku drink tea laced with sleeping pills, while also knocking Mari out in front of Tetsugaku. Satoshi, a yakuza father, appeared in the middle of the performance, accompanied by his subordinate thugs, and the three of them circled around the ball.
