Rashil lives with his grandpa in a mountain area. During a trip in the woods he sees an airship crash and finds a girl. She's been followed by soldiers, who want to capture her.

In a world inhabited by crystalline lifeforms called The Lustrous, every unique gem must fight for their way of life against the threat of lunarians who would turn them into decorations. Phosphophyllite, the...

There has been much conflict between the races of the 'Humas', the 'Gabranth', and the 'Evila'. To combat the 'Evila' race's Demon King, the kingdom summons five high school students from 21st century Japan ...