Ouran Koukou Host Bu dj - Kasouteki Apocalypse

From Turtle Paradise: Kyoya fulfills a request by Ranka, Haruhi’s father, but with no small amount of meddling from the other members of the club, much to Tamaki’s horror and confusion. Confusion also ensues when it is revealed that, believe it or not, Haruhi actually has a birthday. The question is, what do they do with this information?