She is a knight from The Knight Guards of the Third Independent Trade City. Since the Devil War, the head of the Cambell family has fought as a knight. Her grandfather and father founded, protected and supported independent cities. When her father dies from an illness, she decides to be knight - even though she's a girl and doesn't know how fight with swords too well. In her first fight she broke her sword, and almost got killed, if Luke didn't save her then.

Cecily is very loyal and stubborn. Lisa describes her as "bold." She has red hair and eyes.