In a strange jar in a shape of a face was the entrace to the magic world. Inside the jar is a large desert and the vast world of magic where Akubi-chan lives. When someone yawns near that jar, Akubi-chan is called and out she pops! Akubi-chan calls the one who yawned, her master and she has to grant that person a wish. This was a rule in the magic world. Once her master yawns for the second time, the magic is gone and Akubi-chan returns into the jar again.
Due to a coincidence, a shy girl named Koron gets hold of the jar and she just happened to yawn right before the jar and Akubi-chan popped out! The moment she came out, the two became good friends and Akubi-chan tries to grant Koron's wish. But all she does was mess up. Since then, their magical ups and downs continue.

(Source: AnimeNfo)