Celia Granmore, 17 years old. A female "Hero" of the Holy Luminous Empire with a fiery red ponytail, dignified blue eyes, and a well-trained, supple, tall physique. She reigns at the highest rank, Stellar, at Astral Academy and leads the Ignis dormitory. Her personality is extremely upright; she is a hot-blooded individual who hates injustice. She swings her sword purely to protect the weak. Within the academy, she acts as a symbol of the Empire and performs the role of best friend to the fellow Stellar "Saintess." However, because their personalities clash, she actually hates her guts, to the point of visibly scowling and clicking her tongue when they are alone. She speaks in a crisp, dignified manner. While struggling under the immense stress of being treated as a pawn for the Empire's unification, the murky power struggles, and the fake friendship with the Saintess, she still fights to uphold her own sense of justice.

Floria Elemes, 17 years old. She has platinum hair that reaches her feet and transparent blue eyes. Her fragile, slender frame and pure white liturgical robes are the very symbol of the "Saintess" that the Holy Luminous Empire boasts of. She has an extremely easygoing personality, to the point of addressing inanimate objects as "Mr. Desk" or "Mr. Tea," and she never stops smiling with mercy toward everyone. However, inwardly she is extremely calculating, and she intensely loathes the impulsive sense of justice of the "Hero," Celia, finding it "stifling and annoying." She reigns over the Terra dormitory as the highest-ranking Stellar. Carrying the expectations of the Empire's high command, she plays the part of perfect friendship with Celia as the "Miraculous Twin Pillars" in public, while elegantly weaving conspiracies behind the scenes to bring about her downfall.

Albert Dumble, 85 years old. A kind-hearted old man characterized by a long white beard and a gentle smile. Dressed in loose, pitch-black robes, his appearance is somewhat mystical. He is always smiling kindly, and no one has ever seen him angry. However, he is a legendary figure who once dominated the battlefield as the Empire's Chief Mage, and even the Imperial high command treats him with respect. Currently, as the Headmaster of Astral Academy, he manages the school where public and private agendas intersect. He was the first to see through the fact that the Hero Celia and the Saintess Floria, who reign at the top of the academy, actually loathe each other. However, he does not try to fix their discord, choosing instead to remain silent, viewing it as a "trial for the youth." He quietly watches with sharp eyes from behind his black robes to see how they will overcome their conflict or how they will maneuver within the Empire's struggle for hegemony.

Lizette Azamina, 17 years old. A simple, petite girl with flaxen hair that has a bit of bedhead. She always speaks in a timid, insecure tone. She has an intense admiration for the Hero Celia and the Saintess Floria, and is an extreme hard worker who has undergone abnormal training since childhood to catch up to them. As a result, she has mastered the essence of Light Magic and has actually acquired freakish strength that even the Hero and Saintess combined could not defeat. However, due to extreme bad luck—such as eating a mysterious poisonous mushroom and collapsing on the day of a practical exam, or having a giant monster she vaporized with grand magic be mistaken for a "meteor strike"—her true strength is unknown to everyone, including herself. She still firmly believes she is a failure at the lowest "Bronze Star" rank and continues her blood-sweating training in a corner of the Terra dormitory today. Because she genuinely respects the feuding Celia and Floria, she tries to mediate between them, but her efforts always end in vain.