Kakine Teitoku (垣根 帝督 Kakine Teitoku?) is a recurring character in Toaru Majutsu no Index. He is the second ranked Level 5 of Academy City. In his debut, he plays an antagonistic role to both Mugino Shizuri and Accelerator as the leader of SCHOOL, one of the many underground factions in Academy City, with the latter eventually destroying his body and presumed to have killed him. Afterwards, he was used by Academy City to produce technology for them, but his will lingered on. He is reintroduced in Shinyaku Toaru Majutsu no Index, reviving himself through Dark Matter in order to handle the situation with Fräulein Kreutune as well as to deal vengeance upon Accelerator, but is later defeated with the cooperation of Mugino Shizuri.