TV-Series
Description
Nikka Edvardine Katajainen is a witch originating from Suomus, born in Helsinki. She belongs to the 502nd Joint Fighter Wing and is attached to No. 24 Squadron, an elite unit of the Suomus Air Force. She is also a fellow squadron member of Eila Ilmatar Juutilainen. Nikka entered a training school at the same time her witch abilities emerged and was trained as a non-commissioned officer. She is known by the nickname Nipa, and her familiar is an ermine.

Nikka has a boyish appearance and often carries herself in an unladylike manner. She possesses an exacting personality that tends to divide situations strictly into right and wrong. While not unintelligent, she is relatively guileless and easily distracted, which makes her a frequent target for pranks, especially by Eila. She is forward-looking, straightforward, and often blind to her surroundings. Despite these tendencies, she is cheerful and sociable, though she struggles to read the atmosphere in social settings. Her past includes a period as a delinquent, but the influence of her close friends has helped her mature. Her primary motivation is to do her best for her homeland, and she works very hard to accomplish her goals.

In the story, Nikka plays a supporting role in the comedic chibi-style series World Witches Take Off! Her main appearances are in the Brave Witches anime and related media, where she is a core member of the 502nd Joint Fighter Wing. Alongside Waltrud Krupinski and Kanno Naoe, she earned the nickname Break Witches due to their tendency to damage their striker units. Her notable abilities include impressive speed and agility in aerial combat, making her a skilled fighter. She is also known for regularly crashing her striker unit, a trait reflected in her real‑world counterpart, the Finnish flying ace Nils Katajainen.

Her key relationship is with Eila Ilmatar Juutilainen, her squadron mate and close friend, who often plays tricks on her. Through her friendships and experiences, Nikka has grown from a once‑troubled youth into a reliable and hardworking witch, though she remains straightforward and earnest.