Kiki, a young witch-in-training, has reached the age of 13. According to tradition, all witches of that age must leave home for one year, so that they can learn how to live on their own. Kiki, along with her talking cat Gigi, fly away to live in the seaside town of Korico. After starting her own delivery service (using her broom as the delivery vehicle), Kiki must learn how to deal with her new life, especially after she loses the power to fly.