Misaki spent her days idling away, always wishing for an escape from her dull, repetitive routine—until a crystal dropped right onto her head with a light clink. That sudden knock became the fateful encounter between Misaki and a tiny fairy named Mumu. Seeing Mumu slumped in despair over being unable to return home without gathering the lost crystals, Misaki decides to lend a hand simply because she has time to kill. Thus begins the tale of Misaki getting dragged along for the ride, putting her very body on the line every step of the way.