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. Can Phos's seemingly mundane assignment lead both Phos and Cinnabar to the fulfillment they desire?
Tomoyo Kurosawa
Mikako Komatsu
Rie Kugimiya
Mariya Ise
Ayane Sakura
Ai Kayano
Mamiko Noto
Saori Hayami
Ayahi Takagaki
Mutsumi Tamura
Yumi Uchiyama
Himika Akaneya
Junko Minagawa
Maaya Uchida
Kanae Ito
Ari Ozawa
Atsumi Tanezaki
Ryo Hirohashi
Jouji Nakata
Hitomi Nabatame
Houko Kuwashima
Sayaka Harada
Reina Ueda
Yuko Sanpei