![](https://cdn.animecharacters.io/images/anime/large/15797-67542063.jpg)
Format
ONA
Episodes
1
Episode Duration
10 min
Status
Finished Airing
Premiered
Aired
2019-05-24 to ?
Source
Original
Rating
PG-13 - Teens 13 or older
Genres
Action
Mecha
Sci-Fi
Super Power
Studios
Trigger
Producers
XFLAG
Licensors
GKIDS
Promare: Galo-hen (PROMARE(プロメア)ガロ編)
A prequel set one day before the events of the Promare film.