Miho is a 9-year old girl, who is shy but full of imagination. Her dream is to become a popular singer or a cartoonist. One day, she meets a stranger, Fushigi and he gives her two dinosaur plushies, which turn out to be magical creatures called Pigu and Mogu. Pigu and Mogu give her magical tools. Using the tools, she transforms herself into a 15-year old singer and fashion model, Lala!
Miho has a complex feeling towards her mother, a successful career woman, and her elder sister, one of the best students at her school. Miho feels insecure about herself, not knowing what she could be. She wants to believe if she transforms into Lala, she could be a different person, not a shy girl always daydreaming.
In the final story of Magical Girls Series, Pierrot depicts more about a little girl's reality and feelings.