Nishikawa is reprimanded by his homeroom teacher, Ms. Oda, for his poor attitude in class. After school, he is told to come to the staff room, but Ms. Oda is nowhere to be found. After searching for a while, he finds her in the locker room at the back, struggling to fasten her front-hook bra. Her breasts peek out from under the bra, and her huge breasts shake every time she tries to fasten the hook. As he stares intently at the obscene and stimulating scene, the teacher notices Nishikawa and beckons him, asking, "Can you help me fasten the hook?"