In the vibrant valley of Prismari, a creeping phenomenon known as the Chalk Blight is slowly turning the world into a brittle, lifeless grayscale. Isolde, a Chromatic Alchemist who weaves magic through enchanted pigments, is the last person capable of seeing true color. Accompanied by her color-shifting chameleon companion, Pascal, she must journey to the mythical Prismatic Font at the center of the earth. Armed only with her brushes and a single, legendary seed of pure red, Isolde must paint the world back to life before the canvas of reality is entirely erased.