An anime promotional video was released in July 2013 by Studio Hibari, and an anime television series adaptation by Orange aired between October and December 2017.
An anime television series adaptation aired in Japan between October 7 and December 23, 2017. Takahiko Kyōgoku is directing the anime at the Orange CG animation studio. Toshiya Ono is in charge of the series scripts. Yohichi Nishikawa is creating the concept art. Asako Nishida is designing the characters. The opening theme is “Kyōmen no Nami” by Yurika and the ending theme is “Kirameku Hamabe” by Yuiko Ōhara. Sentai Filmworks have licensed the series and streamed the anime on Anime Strike. MVM Films has licensed the series in the UK. The series ran for 12 episodes, which will be released across six DVD and Blu-ray sets in Japan.
Known as “Phos” for short. One of the weaker jewel people, with a hardness of 3.5. Declared as too weak for battle, Phos is tasked with creating an encyclopedia logging new information. As Phos keeps experiencing hardships in battle, their limbs, along with their memories, are gradually lost and replaced with other elements, including agate legs, arms made from gold and platinum alloy, a lapis lazuli head and a synthetic pearl eye.
An aloof jewel person who is even weaker than Phos, with a hardness of 2, but carries a powerful poison in their body. Because this poison taints the environment and erases memories stored inside affected jewel shards, Cinnabar is kept on night watch, but yearns to escape the night.
A kind-hearted jewel person who has the maximum hardness of 10, but is still fragile against enemy attacks.
An intimidating diamond-class jewel person who is powerful in combat and is the most durable of the jewels. They are also very protective of Diamond.