Mahou Sensei Negima! Volume 0
魔法先生ネギま! 0
The "0th volume" of the Mahou Sensei Negima! manga was released with the Mahou Sensei Negima! Anime Final film. It contains a side story and production materials such as the anime storyboards he drew for the opening animation footage of the original anime DVD project. (Source: ANN)