At Shiroyuri Gakuen, one of the stars of the school is the beautiful, smart, talented and cultured Shiramine Ayaka. But, no matter how hard Ayaka tries, she cannot surpass the lazy, sluggard genius Kurosawa Yurine. It makes her crazy, especially as familial expectations for her performance come down to anything less than a perfect score and top ranking equals failure. And there Kurosawa, sleeping through class and acing the test. Ayaka is driven absolutely to distraction by her rival.