Saikyo Jump

Saikyo Jump (最強ジャンプ) is a monthly manga magazine published by Shueisha. It mainly serializes various spin-off series of popular franchises, including One Piece. The magazine is also known for including various appendix items such as collectible cards, posters, and special volumes.

History
The magazine initially started as a joint extra issue bundled with Weekly Shonen Jump and V Jump. It was released quarterly as winter, spring, summer and autumn 2011 issues. After this, it became an independent monthly magazine from its January 2012 issue to the September 2014 issue, when it switched to a bimonthly release. This continued until the September 2021 issue, when it became a monthly release once more.