Shinobu Ohtaka and Yoshifumi Ōtera's spinoff manga Magi: Sinbad no Bōken (Magi: Adventure of Sinbad) will begin its "epilogue" on February 28 on Shogakukan's Manga ONE app. The app teases that the arc will tie the story to the original Magi manga. In addition, the spinoff will switch from updating every Wednesday to updating every other Wednesday.

The manga is a spinoff of Ohtaka's Magi manga. The series takes place 30 years before the events of Magi and focuses on Sinbad's journey to become king.

A 70-page "prototype" of the manga with art by Ōtera was bundled with the first Blu-ray Disc of the Magi anime in 2012. The manga's prologue also ran in Weekly Shonen Sunday later that year. After beginning a full serialization in Shogakukan's Weekly Shonen Sunday magazine, it moved to the publisher's web comic site "Ura Sunday" in 2013. The 17th compiled volume will ship on February 19.

The manga inspired five OVA episodes that shipped with volumes of the manga from 2014 to 2015. The manga inspired a television anime adaptation that ran for 13 episodes from April 2016 to July 2016. Netflix streamed the anime in the U.S. The OVA episodes were aired as episodes 2 through 6 of the television anime series.

Ohtaka's original Magi manga began in 2009 and ended last October. The manga inspired two 25-episode anime series: Magi: The Labyrinth of Magic in 2012 and the sequel Magi: The Kingdom of Magic in 2013.