Sally is the witch princess of the Magic Kingdom who longs to visit the mortal realm. One day, by mistake, Sally teleports there and uses her magic to fend off a couple of burglars menacing two schoolgirls. Immediately befriended by her new acquaintances—tomboyish Yoshiko Hanamura and girly Sumire Kasugano—Sally decides to stay on Earth indefinitely, leading to mischief.