Ines Harness is a knight of the Kingdom of Clays and serves as the vice-captain of its Warrior Corps. Her full name is Ines Harness, and she holds a distinguished position within the kingdom's military structure, acting as a personal bodyguard to Princess Lynneburg, who is often called Lynne.

Her background reveals a humble origin, as she was raised in an orphanage before being taken in by a figure known as the Shield Saint, Dundarg. It was Dundarg who taught her to harness her innate abilities, shaping her into the formidable protector she becomes. She possesses a special defensive technique known as the Divine Shield, a power that allows her to deploy a barrier of light energy, granting her extremely high defensive and offensive capabilities. This ability is so powerful that her defensive prowess is considered unparalleled, leading to her being known by the epithet Divine Shield. Her skills are said to surpass even those of the Six Sovereigns, the kingdom's mightiest warriors, and she has also earned the nickname Goddess due to her immense power. In addition to her defensive abilities, Ines can shape luminous energy into a blade, a technique called Divine Sword, which further contributes to her reputation as both a divine shield and a divine sword. Physically, she is an adult woman with long blonde hair that reaches her hips and purple eyes, typically seen wearing a combination of armor, a dress, and a cape.

Ines is a dedicated follower of Princess Lynne and takes her role as a guardian very seriously. Her personality is initially marked by a strong sense of duty and a degree of wariness towards strangers. This is particularly evident in her early interactions with the protagonist, Noor. Because Noor addresses the princess familiarly by her nickname, Rein, Ines initially views him with suspicion and does not hold a favorable opinion of him. Her role in the story is deeply intertwined with this relationship; she is a key member of Princess Lynne's entourage and a significant figure within the kingdom's power structure. As Noor becomes more involved with the princess and the political tensions of the kingdom, Ines finds her position and her abilities challenged.

Her initial rivalry with Noor forms a crucial part of her character development. Despite her wariness, she is observant and capable of recognizing true strength. After witnessing Noor's capabilities, which she acknowledges as superior to her own, her attitude shifts significantly. This experience leads her to move past her initial distrust, and her rivalry with Noor blossoms into a mutual respect between two powerful individuals. This development highlights her professionalism and her ability to set aside pride for the sake of acknowledging genuine merit, cementing her role not just as a protector of the princess, but as a respected warrior within the larger narrative.