Suya and Ayaka are half-sisters. Until recently they hadn't known much more than the fact that the other existed. Now they both attend Ouran Academy, thanks to Suya finally getting to know their father. Her past is a secret and the one to figure it out just happens to be the one Ayaka is in love with. How will this all work out? Will Suya get the guy or will the sisters give him up and stick together?