Toaru Majutsu no Index SS: Necessarius Special Admission Test (とある魔術の禁書目録SS -『必要悪の教会』特別編入試験編 Toaru Majutsu no Index SS: Necessarius Special Admission Test?) or Toaru Majutsu no Index: Necessarius SS, previously known as Toaru Majutsu no Index SSS is a story written by Kamachi Kazuma, released in parts in the limited editions of the Blu-ray and DVDs of the Toaru Kagaku no Railgun S anime.