Cecily Campbell

Cecily is from a prestigious aristocratic family. She is a 3rd generation knight from the Knight Guards of Houseman, the Third City of the Independent Trade Cities. Her grandfather, a former nobleman who became a knight, was one of the founders of the Independent Trade Cities during the Valbanill War. After the war ended, the Cambell family served as knights protecting the city's independence. When her father died of an illness, Cecily took up the role of the head of house, and thus became a knight. She believes strongly in justice, the protection of the city and its citizens.

In the manga and light novels, Cecily is depicted as a strong, smart girl with great leadership skills, evident early when she leads a group of knights and mercenaries against a band of thieves and monsters. She quickly learns from her mistakes and is a skilled sword fighter. The anime portrays her in the opposite: she is inadequate and possesses mediocre swordsmanship, though she does improve as the series progresses.

Cecily cares deeply about the people around her, whether the citizens of the Independent Trade City or her closest friends. She very quickly becomes concerned about Lisa’s wellbeing, wanting to know if Luke takes good care of her and making sure of her happiness. When Aria describes her life as a demon sword, Cecily compares it to slavery. Even when attacked by an assassin while in the militant nation, she sympathizes with the girl’s motives and desire for independence. Through her kindness, she is able to empathize with anyone, including Jack Strader and Lisa Oakwood.