Kisaragi-kun is an excellent student, and his grades show it--until his third year in high school. His test scores are so bad his teacher demands to know why. But he won't tell her. Finally she drags the answer out him: he's so focused on Asakura-sensei's huge breasts, he can't concentrate in class! "No matter if I'm asleep or awake," he tell her, "I can't get sensei's breasts out of my mind." The desperate student actually gets down on his knees and begs his teacher to grant him one favor.... But can the both of them just stop there?