Hailing from Germania's militaristic nobility, often perceived as barbaric, Kirche von Anhalt Zerbst studies Fire magic at Tristain Academy of Magic with her fire salamander familiar, Flame. Her flamboyant and provocative personality fuels an intense rivalry with Louise de la Vallière, frequently manifested through deliberate romantic overtures toward Saito Hiraga.

Despite antagonizing Louise, Kirche displays pragmatic kindness and loyalty. She negotiates Siesta's freedom from Count Mott by trading a valuable family heirloom, later revealed as a mundane object from Japan. She also lends Saito an ornamental sword during his confrontation with Mott, though its impractical design proves a hindrance. Her friendship with the reserved wind mage Tabitha remains a steady element of her life.

Beyond rivalry, Kirche occasionally aids group efforts against threats, such as during Fouquet's theft of the Staff of Destruction. While primarily characterized by confidence and romantic pursuits, her actions sometimes reveal underlying compassion and resourcefulness.