When summer vacation arrived, Haruhi and her friends took a vacation. Following Koyuki's suggestion, Ibuki and the Kamiyo twins went to the training camp for fortune telling research at Mizuhosaka Academy's boardinghouse located by the beach. Yuma was semi-cold towards Haruhi but he was appointed to become better friends with her during this trip. While everyone was enjoying themselves, strange silhouettes drew near Haruhi and Yuma.
But I didn't realize...