Hazuki Fujiwara, localized as Emilie in Castilian Spanish and German dubs, is one of Doremi Harukaze's lifelong friends since kindergarten. Initially a gentle, reserved, and academically driven third-grader, she embodies sensibility, femininity, and quiet sensitivity, frequently acting as the group's voice of reason. Her shyness and emotional delicacy occasionally spark misunderstandings. Throughout her journey, she cultivates greater confidence and resilience.

As a witch apprentice representing blue, she casts transformation spells starting with "Pretty Witch Hazukicchi!" Her fairy companion is Rere (Lala in some localizations), and her magic channel is a blue bean-shaped crystal ball. Her spells incorporate melodic phrases like "Furirin Furirin, Riritto Riritto!" showcasing her proficiency in precise, graceful magic.

Her parents' flower shop nurtures her appreciation for nature and gardening. She shares a supportive dynamic with Onpu Segawa, bonding over their sensible dispositions. She maintains a close friendship with Doremi, tempering Doremi's impulsiveness with thoughtful counsel. Initially clashing with Reika Tamaki's arrogance, she gradually establishes respectful coexistence.

Responsibilities intensify when the group witnesses Hana's birth as the future Witch Queen candidate. She aids in raising Hana and co-managing the transformed MAHO-do shop across seasons, navigating challenges like Hana's health examinations, cursed vegetable aversion, and the Love Supreme Flower quest. Her meticulous nature proves invaluable during the group's patissier exams.

In the Dokkān! season, she helps lift Majo Tourbillon's curse by recreating sentimental handmade gifts. Ultimately, she chooses a normal human lifespan over full witchhood, pursuing post-graduation dreams while safeguarding her friendships.