OVA
Description
Fūka Narutaki is the older twin sister of Fumika Narutaki in Mahora Academy's Class 2/3-A. She shares an inseparable bond with Fumika, frequently engaging in shared activities and schemes, most notably their self-styled ninja training under Kaede Nagase – though their abilities are recognized as imitation, not authentic ninjutsu.

Physically, Fūka possesses bright pink hair and eyes. Standing 128 cm tall and weighing 54.3 kg, she and Fumika are the shortest students in their class, with physical development lagging behind classmates; their figures are often noted as comparable to their ten-year-old teacher, Negi Springfield. Her birthday is December 6, 1988, and her blood type is A.

Her personality is defined by high energy, mischievousness, and a love for pranks, contrasting with Fumika's reserved nature. She displays a fearless, impulsive approach to mischief, rarely considering consequences, yet demonstrates loyalty to the Strolling Club and deep care for her sister. She enjoys teasing classmates about vulnerabilities, such as mocking Makie Sasaki's fear of physical exams. Academically, her grades are strong but slightly below classmate Chizuru Naba's.

During the Kyoto arc, Fūka and Fumika attempted to form a Pactio contract with Negi by simultaneously kissing a copy of him. This resulted in a botched "Mistake Pactio" called *Geminae Simulatrices* (Simulating Twins), producing a single shared card instead of individual ones. This artifact grants them limited shadow-cloning abilities, though the maximum number of copies remains unspecified. They later aided Negi's quest to locate his father and confront the Mage of the Beginning, including a sidelined Christmas subplot where they befriended two animals revealed as incognito magic princes. This interaction led to sustained contact, culminating in their marriages shortly after high school graduation.

In the epilogue, Fūka married an unnamed husband and had a daughter, residing near Ariadne in the scenic old capital of the Hellas Empire. Their lives were noted as one of Class 3-A's "Cinderella stories" due to their marital outcomes.

Beyond pranks, Fūka possesses basic navigation skills honed in the Strolling Club, which she used to guide Negi around Mahora Academy. Her Pactio-derived cloning, while inconsistently depicted across media, remains her primary supernatural trait.