![](https://cdn.animecharacters.io/images/anime/large/14797-78b13a01.jpg)
Format
ONA
Episodes
20
Episode Duration
14 min per ep
Status
Finished Airing
Premiered
Aired
2017-04-28 to 2017-09-01
Source
Game
Rating
PG-13 - Teens 13 or older
Genres
Action
Adventure
Fantasy
Studios
Success Corp.
Dangun Pictures
Producers
Tohokushinsha Film Corporation
Tencent Animation & Comics
Tencent Games
Licensors