Nikka Edvardine Katajainen (ニッカ・エドワーディン・カタヤイネン ?) is a witch of the [[502nd Joint Fighter Wing]], originating from [[Suomus]]. She is referred to as "Nipa" by her friends. Her familiar is the Ermine.

Nikka is affiliated with No.24 Squadron, an elite unit of the Suomus Air Force. As [[Eila Ilmatar Juutilainen]] is also a member of this squadron, the two are fellow squadron members.

Nikka is something of a tomboy, bearing a boyish appearance and often unladylike manner. She was once something of a delinquent, which has since eased somewhat with the influence of her close friends such as Eila and [[Hanna Wind]]. She possesses a very exacting personality which usually splits any situation into right or wrong. While not stupid, she is relatively guileless and often distracted, making her a popular subject for Eila's pranks.

Nikka is based on the Finnish flying ace Nils Katajainen (http://en.wikipedia.org/wiki/Nils_Katajainen ). Like Nikka, Nils had a reputation for frequently crashing his craft, often surviving with only minor injuries. Her nickname, "Nipa," was also Nils' nickname during the war. 
ニッカ・エドワーディン・カタヤイネン