Kodansha's "Magazine Pocket" manga app published the last chapter of Kyōta Shibano's Fairy Tail Gaiden: Kengami no Sōryū (Fairy Tail Spinoff: Twin Dragons of Sabertooth) spinoff of Hiro Mashima's Fairy Tail manga on November 4. The app will launch a new Fairy Tail spinoff manga titled Fairy Tail Gaiden: Rhodonite (pictured at right) on November 18, which will focus on the character Gajeel.

Fairy Tail Gaiden: Kengami no Sōryū follows guild master Sting, Rogue, Yukino, Minerva, and other members of the Sabertooth Guild. Shibano launched the manga in the "Magazine Pocket" app on July 30, as part of the app's launch.