Cautious Cocona’s world is turned upside down with the sudden appearance of a fearless though troublesome girl named Papika. When these two girls meet, their adventures in a different dimension called "Pure Illusion" begin. Together, they go searching for mysterious crystals called "Shards of Mimi," powerful items which are said to be able to grant any wish. However, in pursuit of these crystals, obstacles arise, and the shards shine enabling them to transform into fairy-like beings.