A strange jar shaped like a face hides the entrance to a magical world, a vast desert realm where Akubi-chan lives. The rule is simple: when someone yawns near the jar, she pops out, calls that person her master and must grant them a wish. When the master yawns a second time, the magic ends and she returns to the jar. Koron Nemuta, a shy girl who yawns when she is embarrassed, comes across the jar by chance and happens to yawn right in front of it. The two become good friends at once, and Akubi-chan sets out to grant Koron's wish, but her magic keeps going wrong. Their magical ups and downs carry this lighthearted fantasy comedy from there.