The official website for the anime adaption of Labo Asai's Saredo Tsumibito wa Ryū to Odoru: Dances with the Dragons (lit: Even So, Sinners Dance with Dragons: Dances with the Dragons) light novel series opened and revealed the anime's main cast and staff on Wednesday. The website also revealed that the anime will premiere on TBS and BS-TBS in October.

Nobunaga Shimazaki (Free!'s Haruka Nanase, Silver Spoon's Shinnosuke Aikawa) is starring as Gayus, and Yoshimasa Hosoya (Haikyu!!'s Asahi Azumane, Attack on Titan's Reiner Braun) is voicing Gigina. They will appear at a stage event for the anime at a 10th anniversary event for Shogakukan's Gagaga Bunko on September 23.

Hiroshi Nishikiori (A Certain Magical Index, Azumanga Daioh) is the chief director, and Hirokazu Hanai (episode director for The Future Diary, The Pilot's Love Song) is directing the series. Takayo Ikami (Penguindrum, Beautiful Bones: Sakurako's Investigation) is in charge of series composition, and Masaru Kitao (Death Note, Pops) is designing the characters.

The story revolves around "jushiki" (lit. spell equations), the equations that govern the quantum constant "h" of action, change the laws of physics at the local scale, give birth to TNT explosives and poison gas, and cause incredible physical phenomena such as plasma and nuclear fusion. Two "jushikishi" (spell equationists) who use jushiki in battle are Gayus (who deals with bad luck with tact) and the beautiful but cruel sword-wielder Gigina. These two bounty hunters are caught up in a battle with dragons in the city of Eridana and in the intrigue of great nations.

Shogakukan describes the story as the "ultimate work that founded the dark light novel genre that changed the concept of light novels."

Asai launched the Saredo Tsumibito wa Ryū to Odoru novel series with illustrations by Miyagi in 2003, and switched publishers from Kadokawa Sneaker Bunko to Shogakukan's Gagaga Bunko in 2008. (After the publisher switch, Asai rewrote the story and added the Dances with the Dragons subtitle to its title.) Illustrator Zain replaced Miyagi starting in the 14th volume of Gagaga Bunko's run. The 19th volume shipped on Febururary 17, and the 20th volume will ship on September 20.