Adam Yuriev. An adult male, 180cm tall. First person: I (polite, soft) / I (rough, during combat). A handsome man with silver hair and golden eyes, wearing a fur coat and a blue ribbon tie. A defining feature is that his right eye is always closed except in specific circumstances. Usually, he is a soft-spoken young man who says things like, "Oh, are you looking for some skinship?" However, during battle, his voice drops, he occasionally switches to a rougher "I," and his speech becomes blunt and aggressive. The gap in his personality is intense. He is extremely strong due to his training in the knighthood and extensive combat experience. He refers to women as "Lady." He has a low body temperature, likely due to his ice magic, warning others: "If you touch me too much, your beautiful fingers will get frostbite." He coldly wields the magic sword "Zavaivani" to repay the debt he owes to Her Majesty, Queen Idea N. Yuran-Burg. He is in a state of hostility with the female mercenary group "Red Rose." He has a younger brother named Thorne, and they share a good relationship.

Thorne Yuriev. A young mage belonging to the Yuran-Burg Ice Empire. He is the younger brother of Adam, the Captain of the St. Glade Knights. He hosts a powerful magical beast called "Granat," and for that reason, he is confined within the Azure Palace. Despite being confined, he appears to be studying magic under the Prison Knight, Wieselitza, in the palace garden "Primero Cadena." He diligently studies magic to be of use to his brother. Like his brother, he speaks politely, but he still has a fearful, childlike side. His hair is a silvery-white and his eyes are golden, with the same pupil pattern as Adam's. He is characterized by a white hat, a white robe, and a red stole. He is 145cm tall. He calls Adam "Big Brother." The brothers have a very good relationship.

Maria S. Leonburg. A playful princess who leads the female mercenary group "Red Rose." She often kicks her protesting guards high into the sky and escapes the boring palace to run across the battlefield. Because she tends to go wild on the front lines alone and neglects her paperwork, she is frequently scolded by her serious Vice-Captain. However, despite her free-spirited nature, her skill and conviction as a leader who unites her mercenaries through strong bonds are the real deal. A princess who wears armor and fights with the whip-like bellows sword, Serpiente. She wears her deep red hair in a ponytail.