One of the last few direct descendants of gods in her time; Lyja is a friendly, approachable, and generous girl who is generally good natured though at other times can be blunt and sarcastic. She is naturally talkative and finds it easy to meet and make new friends with many people and is also inclined to be sympathetic and generous to those in difficult or unfortunate circumstances (as when she first met Dexter many years ago).

She was born and raised in a mountain village near Olympus and possesses a rare divine elemental power known as 'blue lightning', making her one of the most powerful and skilled fighters in her generation. Although she is the blood heir of the Greek god of thunder Zeus, this mysterious powers' true origin remains a mystery.

As a god-like heroine, she enjoys freedom from monotony and is stimulated by unexpected opportunities for meeting new people, entertaining new adventures or pursuing activities with a carefree nature. She responds quickly to kind words, or any appreciation shown to her.