OVA
Description
Poppu Harukaze, also known as Pop Harukaze, is the younger sister of Doremi Harukaze and the fourth witch apprentice to become part of the group connected to the Maho-do. She is four years younger than Doremi and was born on September 9. In the early part of the story she attends Sonatine Kindergarten, and she later moves on to Misora First Elementary School. Her witch apprentice outfit is red, her companion fairy is Fafa, and she uses a trumpet-like magical instrument called a Poron. Her magical incantation is "Pipitto Puritto Puritan Peperuto," and during the group's Magical Stage she uses the incantation "Pipitto Puritto hogaraka ni." Unlike the other apprentices, she continues to use her original first-season outfit and items throughout later appearances.

Poppu became a witch apprentice at the age of four after witnessing Doremi, Hazuki, and Aiko using magic. Her stated reason for joining was that her older sister was doing it and it looked interesting. From an early age she shows a level of independence unusual for her years, such as being able to mind the shop on her own and knowing how to handle household appliances even while still in kindergarten.

In terms of personality, Poppu is reliable, capable, and mature for her age, and she is often admired by adults and classmates alike. She is the opposite of her clumsy and unfocused older sister, and she frequently criticizes Doremi, at first believing that Doremi is bound to fail at everything. She likes to describe herself as mature, but she remains a young child underneath, and her tendency to fall asleep easily at night prevents her from taking the witch apprentice examinations, which are held after dark. Despite her constant teasing, she genuinely loves Doremi's kindness and has followed after her sister since she was born.

Poppu's early motivation for magic is simply to be part of what her sister is doing. Over time she develops a serious and independent goal: she begins piano lessons while in kindergarten and dreams of becoming a professional pianist. In the later continuation of the story, she is in the sixth grade and studies diligently with the aim of entering Karen Girls Academy as a piano major. Her bond with Doremi also shapes her choices, as shown when Doremi decides not to become a full witch and Poppu tearfully declares that she will not become one either.

Poppu joins the witch apprentice group in the latter half of the first season and becomes a regular member from the second season onward. In the OVA series Ojamajo Doremi Na-i-sho, which focuses on expanding the personality and background of each main character, she is one of the central figures. She also participates in the group's Magical Stage and contributes to the resolution of various incidents involving Hana, the magical baby cared for by the group.

Her most important relationship is with her older sister Doremi. The two begin with a strained dynamic, as Poppu looks down on Doremi's clumsiness, but they grow into a close bond built on mutual care, with Poppu continuing to tease Doremi affectionately. She gets along particularly well with Onpu, whose personality is similar to her own, and she is treated as a little sister by Hazuki, Aiko, and Onpu, who are all only children. During kindergarten she frequently argues with her classmate Kimitaka, who confesses to her shortly before transferring to Hokkaido, and the two remain in contact afterward. She addresses Majo Rika by the nickname Bunyu-chan, which comes from a childhood misunderstanding when she mistook the witch for a plush toy. There is also a group known as the Poppu-chan honor guard that promises to come to her aid in times of trouble, though it rarely has the chance to act.

Over the course of the series, Poppu moves from kindergarten into elementary school, and her relationship with Doremi softens from rivalry into affectionate closeness. On the magical side, she is a talented apprentice whose progress outpaces that of the others: in the second season she skips several ranks to reach the sixth-class level, and at the end of the fourth season she passes the first-class examination and briefly holds a witch's red crystal ball. In later stories, she remains a strong student and keeps her goal of becoming a pianist.

Poppu shows considerable natural aptitude for magic and advances through the witch examinations faster than older apprentices, with Majo Rika recognizing her potential early. Her main limitation is practical rather than magical, as her inability to stay awake at night interferes with taking examinations. Outside of magic, she is a capable pianist, having started lessons while in kindergarten, and her favorite instrument is the trumpet even though she plays the piano.