Princess Jae Hwa, and her cousins, the triplet princes Dong Ho, Seo Jun, and Min Ki all lost their families one night when the palace of Elysias was attacked. For their safety, the King's Council sent the last four remaining royals into hiding with eight members of the Royal Guard to protect them until they were adults and could handle their royal duties. Almost 16 years later, JR and Aron, two of the members of the Royal Guard sent with the very young royals are worried. At the beginning of their second year of high school, three new boys started with a couple of relatives each. The boys were Baekho, Minhyun, and Ren, and their friends had never seen them react so weird to anyone before. Now, at the beginning of their third year, a new GIRL started with 12 relatives in tow. Their friends had never seen them so anxious before. What were they hiding? Why were these four students so important?