Negima!? Neo Volume 6 was released in Japan on April 17, 2009, by Kodansha. This book was a spin-off series of the original manga and was released under the supervision of Studio SHAFT for their's Negima!? anime series.
Volume 6 of the 7-volume series focusing on Negi, a boy wizard who is tasked with teaching a class of junior-high girls all while searching for clues to lead to his missing father. This is a spin-off series of the original manga and is essentially, a retelling.
The volume includes a colored sleeve around the book itself.