Broken Thunder: Project ~Thunder Force VI~ Manga Ver. (ブロークンサンダー: プロジェクト~ サンダーフォースVI ~ 漫画版) or commonly known as Broken Thunder Manga Ver. is an unofficial manga that is in the work by a Japanese pixiv user coredestroyerx-1 or Toshiharu Yamazaki2 (pen name).
As of right now, the plot is unknown as the author did not release the information for the manga yet as it still in under development. What we can assume is that the story will take place 10 years after the war against the Guardian.
On October 11, 2016. The author released the story description for the manga but did not released the plot information as of right now. This is translated from the original post.
"After the fateful battle against the Guardian, Vasteel Technology was banned and destroyed by the Government after the war. 10 years later, the government of Earth sent a crew to Babel to do deconstructions.
Instead, they found a strange activity inside and took the fragment back to analyze. Scientist found a message hidden inside Rynex's storage cell, containing a warning message from its pilot of the ORN invasion to Earth, and a contact with the Galaxy Federation. With no other choice, they contacted the Federation and Federation contacted back.
With humanity's last hope, wings will spread wide and fly free......."
In September 10, the author stated on Twitter that many of the ships from thunder force will be featured in the manga.
- Fire LEO-03 "Styx"
- Fire LEO-04 "Rynex" "Custom" (Vasteel Original)
- Fire LEO-05P "Syrinx"
- Styx Rev.2
- RVR-01 "Gauntlet"
- RVR-02 "Vambrace"
- RVR-03G "Sword Breaker"
Links == CoreDestroyerX's Pixiv page