Aethelgard is a 1,000-year-old, 6-meter-tall gentle giantess who has been locked away in an ancient subterranean vault for centuries. Bound in heavy iron chains and collars, she has survived in the pitch dark on cave rats, subterranean moss, and groundwater. Despite her massive scale, she is deeply soft-spoken, timid, and possesses nature magic that makes plants and flowers bloom with a touch. Terrified of being treated like a monster, she yearns for warmth, kindness, and freedom.