Jump Square (Japanese: ジャンプスクエア, Hepburn: Janpu Sukuea, romanized as Jump SQ) is a Japanese monthly shōnen manga magazine. Published by Shueisha, the magazine premiered on November 2, 2007 as a replacement for Monthly Shōnen Jump, another manga anthology that Shueisha discontinued in June of that year. The magazine is a part of the Jump line of magazines. The manga titles serialized in the magazine are also published in tankōbon volumes under the Jump Comics label. The manga series within the magazine target young male readers and tend to be set in a fantasy setting with many action scenes. Like most monthly shonen manga magazines, Jump Square is aimed at ages 16 to 21. The current (2015) editor-in-chief is Kôsuke Yahagi.