The third anime season will begin airing on October 3 at 12:30 a.m. on Tokyo MX, Sun TV, KBS Kyoto, and BS11, followed by AT-X on October 3 at 11:30 p.m. d Anime Store, U-NEXT, Anime Houdai, GYAO!, Bandai Channel, FOD (Fuji TV on Demand), Niconico, VideoMarket, and dTV will also stream the anime.
Voice actress Yuka Iguchi (Lostorage Incited WIXOSS) is returning to perform the opening theme "Over and Over." Anisong band sajou no hana (Toaru Kagaku no Accelerator) is performing the ending theme "Evergreen."
Fujino Omori originally submitted the adventure fantasy light novel for the 4th GA Bunko Award in 2012 and received a publication offer. SB Creative began printing the novel featuring illustrations by Suzuhito Yasuda in January 2013 and will release the 16th volume on October 14.
The 13-episode first anime season aired in Spring 2015, and the second season aired in 12 episodes in Summer 2019. Crunchyroll simulcast the second season, while HIDIVE streamed an English dub. The Orion no Ya side story anime film opened in Japan last February.