She is a young girl who lives in a harsh, post-apocalyptic world ravaged by ash storms. Kaia is strong-willed, resourceful, and determined to survive and find her missing brother. The story follows her journey, highlighting her resilience and the challenges she faces.
While other characters like her brother, Finn, and their friend, Zane, play important roles in the story, Kaia is the central figure, driving the narrative forward.