An Ghoul Investigator Training Academy (喰種捜査官養成学校, Gūru Sōsakan Yōsei Gakkō), usually shortened to Academy (アカデミー, Akademī), is an institution devoted to training future Ghoul Investigators. In Tokyo, there exist at least seven Academies. Under normal circumstances, only graduates of the Academy are permitted to become ghoul investigators and begin their careers as Rank 2 Investigators. Rare exceptions do exist, and begin their careers as Rank 3 Investigators.