Gaion Sigma is a 2014 Haritsese tokusatsu film. The film is a spinoff of another toku hero movie Houjin Yatsurugi.
When mutants started attacking the city of Fujika, Kaito Shishidou, a genius engineer and Shishidou Industries owner transformed in armored hero Gaion to fight them with the help of Hotaru - Elna No. 2, an armored heroine and his butler Richard. They will solve the mystery behind the mutants, the mysterious bio-weapons development company Vega Corporation and the development of their own powered armor.
Gaion Saga was announced in the Miyazaki & Toei Press Conference on late 2013. Filming started in January 12, 2014 and ended in March 14, 2014.
- Masaaki Nitta as Kaito Shishidou
- Ayaka Tsuji as Hotaru Amami