The violent young lady of the Boreas family, lords of the Fittoa Region. A red-haired beautiful girl pursuing the path of the sword, she has a harsh personality. To defeat the Dragon God Orsted and protect Rudeus, she travels with her master Ghislaine to the Holy Land of Swords, the headquarters of the Sword God Style. She begins training under Gal to master the "Light of the Sword" technique. Gal takes a liking to the look in her eyes and begins her instruction. She was previously taught how to fight and read opponents by Ruijerd. "Just swing your sword with a clear mind. When you're tired, sit down, rest, and think. When you're tired of thinking, stand up and swing your sword again." Following those words, she begins training alone, swinging her sword single-mindedly. She is the central protagonist of the events at the Holy Land of Swords.

A powerful warrior who mastered the Sword God Style and previously earned the title of "Sword King" at the Holy Land of Swords. She brings Eris to the Holy Land to support her further training. A reliable master who speaks little but has deep affection for her disciple. To Eris, she is both a sword instructor and a reassuring guardian-like figure who overcomes harsh training alongside her. She watches over and supports Eris during her practice. A beast-race Sword King. She calls Gal "Master" but speaks to him casually.

The strongest swordsman at the peak of the Sword God Style, ranked among the Seven Great Powers as the "Sword God." As the head of the Sword God Style, he instructs many disciples and becomes the master who teaches swordsmanship to Eris upon her arrival at the Holy Land. Possessing overwhelming skill and power, he is an idolized figure for those aiming for greater heights as swordsmen. The world's strongest class of swordsman and the master at the top of the Sword God Style. He is the one who forges Eris and allows her to grow significantly as a warrior. He was once utterly defeated by the Dragon God Orsted and is a man he wishes to cut down. He is also Ghislaine's master.

The daughter of the "Sword God" Gal Farion and a Sword Saint training at the Holy Land of Swords. She is one of Gal's disciples. A talented individual blessed with swordsmanship skills, she possesses high-level techniques inherited from her father. Hating to lose and strong-willed, she harbors a strong sense of rivalry toward Eris, who appeared suddenly. While viewing Eris as a rival, they hone their skills together as swordsmen. A proud Sword Saint blessed with talent. A rival figure who burns with competitive spirit against Eris. She trains alongside the protagonist and Eris. However, she feels a bit of distance from her father. During training, she carries herself as a fellow disciple.

The disciple and granddaughter of Reida Liia, the "Water God" and master of the Water God Style. One of the powerful practitioners who mastered the Water God Style, she becomes involved with Eris and the others visiting the Holy Land of Swords. Possessing high swordsmanship and the defense/counterattack capabilities unique to the Water God Style, she becomes an important figure for Eris as a fellow swordsman. A talented swordsman inheriting the Water God Style. A person who boasts high technical skill as a warrior under the teachings of her master, Reida. She sometimes trains with the protagonist and Eris. She becomes a rival to Eris and Nina.

Despite his eccentric appearance, he is a master of the North God Style swordsmanship and a powerful warrior holding the title of "North Emperor." He appears at the Holy Land of Swords where Eris is training. He assists with Eris's training and other tasks. He provides support for the training regimen.

A master of the Water God Style swordsmanship who holds the title of "Water God." She is Isolte's master and grandmother. She appears at the Holy Land of Swords with Isolte. She is the same Water God Reida Liia who gave sword lessons to Paul during his youth.

Dismissed by Gal as being "soft," he was defeated by Eris before even gripping his sword. He spends his days merely looking up at the backs of Nina, his idol, and Eris from afar. He watches the protagonist from the shadows.