Negima! Magister Negi Magi Volume 13 (New Edition) was released in Japan on June 9, 2017 by Kodansha for ¥880. This is the 13th 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.
新装版13巻はネギ・パーティとフェイト・パーティ戦闘開始! 現実世界への帰還を提示するフェイトだったがネギはそれを退け、宣戦布告! フェイトもネギを宿敵と認め、「完全なる世界」対「白き翼」本格開戦! そんな中、ネギの両親の過去も明らかに…!
-- Kodansha