Negima! Magister Negi Magi Volume 15 (New Edition) was released in Japan on July 7, 2017 by Kodansha for ¥880. This is the 15th volume of a series of re-releases of 19 books in total about the challenges of Negi, a child wizard who is tasked with teaching a class of junior-high girls all while searching for clues to lead to his missing father. It was written by author, Ken Akamatsu.
In 2016, Negima's original manga began to hit stores once more as a series of unique re-releases to commemorate the sequel series, UQ Holder!, which head been green-lit for an anime series. The new releases would be released in an omnibus-form and would contain two volumes of the manga instead of releasing all 38, dividing the total number of books in half. In addition, these releases featured new art of select characters in the artist's modern style on the cover and each was splashed with sparkly star effects.
装版15巻は魔法世界とネギの両親の真実編! かつての英雄、紅き翼のメンバーであったクルト総督によってナギ世代の過去が明かされた! さらに魔法世界の真相に到ったネギは魔法世界を守ることを決意するも「造物主の掟」が発動! 無敵のラカンも窮地に陥る!
-- Kodansha