Elizabeth Ashley is a supporting character in the Kingdom of Salutania. She is the only daughter of the prestigious Ashley Marquis family and holds the position of the first prince's fiancée. At the age of fourteen, Elizabeth, often called Liz by those close to her, is a young noblewoman whose life is defined by duty. Her striking appearance, characterized by beautiful golden hair styled into elegant ringlet curls and refined features, makes her stand out at the Royal Academy and among her peers.

Elizabeth’s personality is a careful balance of strict responsibility and genuine kindness. Her upbringing, which has focused on preparing her for the role of the future queen, has made her remarkably mature beyond her years. She possesses a strong sense of duty and presents a serious, responsible demeanor to the world. However, this exterior conceals a deeply compassionate individual who cares greatly for the welfare of her friends and peers. She often puts the needs of others before her own and seeks to resolve conflicts through kindness and diplomacy.

Her primary motivation is to fulfill the expectations placed upon her as a noble and as the prospective queen, a path that demands constant dedication. Yet beneath this sense of duty lies a personal desire to protect those she cares about and to navigate the complex social challenges of the royal court with grace. Her life becomes complicated with the arrival of a young woman named Aira Misono, who is summoned to the kingdom as a potential Saint. Initially, Elizabeth is wary of Aira due to her dependent relationship with Elizabeth’s fiancé, Prince Kyle Salutania.

Elizabeth’s role in the story is primarily as a friend and a stabilizing figure among the younger nobility. She attends the Royal Academy, where she must manage her demanding schedule as a student and future queen. Observing Prince Kyle’s close relationship with Aira causes Elizabeth significant distress. Rather than reacting with jealousy or malice, she shows genuine concern for everyone involved. Her anxieties also extend to her friend Nicole Adler, who becomes self-conscious about his appearance and stops attending school. Demonstrating her thoughtful nature, Elizabeth seeks out the help of Sei Takanashi, a woman she meets at the royal library and gradually realizes is the true summoned Saint. Despite the age difference, Elizabeth forms a close friendship with Sei and confides in her about Nicole’s troubles, prompting Sei to create skincare products that resolve the issue.

Key relationships define her journey. Her engagement to Prince Kyle is initially one of duty, but its dissolution occurs after various incidents and subsequent disciplinary actions against the prince. In the anime adaptation, Elizabeth shows considerable strength of character by deliberately redirecting criticism meant for Aira onto herself to protect her. After Prince Kyle’s suspension, he asks Elizabeth to look after Aira, a request she accepts with a sigh at his awkwardness, showing her ability to move past personal grievances. She is a loyal friend to Sei Takanashi, and a reconciled ally to Aira, proving she is a reliable and respected individual. In the finale, Elizabeth happily reunites with Aira after a dangerous expedition, demonstrating that their friendship has endured.

Throughout these challenges, Elizabeth experiences subtle development. While she begins as a somewhat anxious girl trying to manage her duties, she evolves into a more self-assured young woman who reconciles with her rivals and remains a supportive friend to all. Her notable abilities are not magical or combative but are rooted in her social grace, responsibility, and diplomatic skill. She is a problem-solver who uses her influence to help others rather than for personal gain. While often seen wearing attire such as a dress with a choker, and possessing long blonde hair and blue eyes, her most significant power is her strength of character.