Toaru Majutsu no Index SS: Norse Mythology

Toaru Majutsu no Index: Kanzaki SS is short story series featuring Kanzaki Kaori as the protagonist, going around the world and space doing missions for the Church of Necessary Evil, however, there is more than meets the eye as each incident is connected.
Set of eight short stories, bundled with the Limited Edition DVDs of the Toaru Kagaku no Railgun anime