In the Toaru Majutsu no Kinsho Mokuroku (Index) SS series:

V.1 - Norse Mythology
A series of short stories in the world of Toaru Majutsu no Index organized into chapters 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.

V.2 - Necessarius Special Entrance Exam
The story revolves around the Amakusa-Style Remix of Church being tested by the Church of England to become part of it, but later changes with the Amakusa being involved in a conspiracy after conspiracy being piled up on top of one another, forcing them to not only clear their name but aid in stopping the various conspiracies happening around them.