The Lily girls agree on one thing and one thing only: they cannot be together. After all, constantly being mistaken for each other is nearly enough to drive the two mad, and the Kobayashi twins cannot stand it any longer. Sayuri, the younger of the two, cuts her hair and her ties with her sister, Yuriko, and transfers to Ouran Academy. But in the end, she wonders whether separation was really the right decision after all, especially after meeting a pair of fiery-haired twins.