Negima! Magister Negi Magi Volume 21 was released in Japan on January 17, 2008, by Kodansha. This book is part of the series about boy wizard, Negi Springfield, by author, Ken Akamatsu.
Volume 21 of the 38-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 standard volume for the series and includes a colored sleeve around the book itself. The manga is printed in the standard black-and-white.