When his Dad gets a teaching job at an American University, Ranpo must move with them to the American state of Connecticut. Once there he starts his Junior year of high school at Manhasset Manor Academy, which is also attended by the children of the elite Fitzgerald Family. Four of them are Juniors just like he is, four are Seniors, and the youngest Lucy is a Sophomore. Lucy is wild and social and eager to make friends with the new student, but Ranpo is more curious about her introverted older brother. After a failed introduction, Ranpo becomes even more curious to find out all he can about Edgar, determined, if not to befriend him, then to beat him out for top rank in the next exams. But what will happen when he turns up something far more disturbing than just gory mystery novels and a strange obsession with Racoons?