Overview: One morning. As soon as I go to school, I feel something is wrong. Everywhere, schoolgirls are on a diet. That should be it, the medical examination was approaching next week. When lunch comes, they open a tiny lunch box and bring healthy side dishes to their mouths. Asuka and Suzu (Yuna) answer, "Because I have to put up with it until after school," when I'm worried that "Is that enough?" According to the two, they will make "air donuts", which are perfect for dieting, in the kitchen after school. I was delighted that the air donuts that I wouldn't get fat even if I ate them said, "There is such a good story!", But it was a forbidden donut that "be careful of overeating" ...