Tree Diagram Remnant Arc

The Tree Diagram Remnant Arc is a story arc in Toaru Majutsu no Index. Focusing mostly on the point-of-view of Judgment member Shirai Kuroko, it deals with an important piece of the recently destroyed Tree Diagram, the Remnant, being stolen by Musujime Awaki a fellow teleporter, as well as Misaka Mikoto's.

Trivia

 * With only two episodes, this is the shortest arc the anime adaptation of the novels has featured.