![](https://cdn.animecharacters.io/images/anime/large/13057-9d96bc61.jpg)
Format
TV
Episodes
12
Episode Duration
24 min per ep
Status
Finished Airing
Premiered
Fall 2017
Aired
2017-10-07 to 2017-12-23
Source
Manga
Rating
PG-13 - Teens 13 or older
Genres
Action
Mystery
Drama
Fantasy
Seinen
Anthropomorphic
Studios
Orange
Producers
Mainichi Broadcasting System
Kodansha
Movic
AT-X
TOHO animation
Tokyo MX
Q-Tec
Kyoraku Industrial Holdings
BS11
Licensors
Sentai Filmworks
Houseki no Kuni (宝石の国)
In the mysterious future, crystalline organisms called Gems inhabit a world that has been destroyed by six meteors. Each Gem is assigned a role in order to fight against the Lunarians, a species who attacks them in order to shatter their bodies and use them as decorations. Phosphophyllite, also known as Phos, is a young and fragile Gem who dreams of helping their friends in the war effort. Instead, they are told to compile an encyclopedia because of their delicate condition. After begrudgingly embarking on this task, Phos meets Cinnabar, an intelligent gem who has been relegated to patrolling the isolated island at night because of the corrosive poison their body creates. After seeing how unhappy Cinnabar is, Phos decides to find a role that both of the rejected Gems can enjoy. Houseki no Kuni follows Phos' efforts to be useful and protect their fellow Gems. [Written by MAL Rewrite]