Three members of Mithril's Special Response Team (Sousuke Sagara, Kurz Weber, and Melissa Mao) are assigned to protect Kaname Chidori from terrorist organizations. Because of Sousuke's age and Japanese heritage, he enrolls at Kaname's school, Jindai High, as an undercover student. However, because of his speech and actions, he comes across as "weird" to Chidori, though she admits he is "interesting" in a phone call.