An implementation for a proficiency test has been announced for the first years. Furthermore, one student from each class will be selected to participate in the Summer Festival as a unit with S4. Test results of their abilities come back and Mahiru Kasumi is the first to be selected for the Beauty Class. Everyone thought she would be happy but her facial expression is firm, saying "I will definitely not lose to my sister"...
１年生に実力テストのじっしが発表される。また、かく組で１いになったせいとは、Ｓ４とユニットを組み夏フェスに出場できるという。実力テストのけっか、美組の１いとなった香澄真昼は、よろこんでいると思いきや、そのひょうじょうはかたく、「姉にはぜったいに負けない」と言い放ち…。
