Humans and flower elves coexist in the "Continent of Flora". Each thousand-year-old flower breeds a flower elf, which masters a natural law. Elf contractors need to pass the "Flower Language Trial" to gain recognition. The mysterious organization "Angui" attempts to seize the elves of the Twelve Gods and resurrect the ancient disaster "Vine of Rotten Heart" to subvert the ecological laws. Arya, an ordinary herb-gathering girl, accidentally awakens the rose elf "Crimson Tears" and becomes involved in a thousand-year-old battle of guardianship...
