The young Master of Sabertooth. Full name: Sting Eucliffe. One of the guild's five strongest mages. One half of the Twin Dragons, known by the alias "White Dragon Sting." He has a cheerful personality. Taught Dragon Slayer Magic by the White Dragon Weisslogia, he is a Third Generation Dragon Slayer with Dragon Lacrima implanted in his body, allowing him to activate Dragon Force at will. He cares deeply for his partner and disciple, Lector. At the start, he encounters the unconscious protagonist.

One half of the Twin Dragons, known by the alias "Shadow Dragon Rogue." Usually quiet and composed, but possesses a deeply caring and compassionate nature toward his comrades. One of the guild's five strongest mages. Taught Dragon Slayer Magic by the Shadow Dragon Skiadrum, he is a Third Generation Dragon Slayer with Dragon Lacrima implanted in his body. His partner is Frosch. He can activate Dragon Force at will and has the ability to transform his body into an intangible shadow to nullify attacks and completely erase his presence. At the start, he encounters the unconscious protagonist.

A Celestial Spirit Mage of Sabertooth. Polite and always uses formal speech, addressing others as "Lord/Lady [Name]." At the start, she encounters the unconscious protagonist.

Alias: The Minstrel Who Sings to the Red Moon. One of the guild's five strongest mages. A long-haired man wearing a mask over his eyes. He has a unique way of speaking centered around the word "memory," using phrases like "I have a memory of..." or "It is not in my memory." He has a flamboyant, showy personality but is fundamentally a good person.

A mage of Sabertooth and one of the guild's five strongest. He has a habit of singing self-composed songs when his excitement peaks. He is very fond of Lector and Frosch and is often seen glancing their way, hoping they might play with him. First person: I (rough, casual). A Lightning God Slayer who manipulates black lightning. He primarily fights by discharging black lightning from both hands like a cannon.

A reddish-brown male Exceed who follows Sting. His catchphrase is "...Right!" and he addresses others with "-kun." While his speech is polite, he is notably condescending and insolent toward enemies. He is often seen with Frosch. At the start, he encounters the unconscious protagonist.

A green-colored Exceed who follows Rogue. First person: Fro. Catchphrase: "Fro thinks so too!" Speaks with a childish, slightly lisping tone. Extremely directionally challenged; unable to return to the guild alone. At the start, Frosch encounters the unconscious protagonist.

A mage of Sabertooth. First person: I (archaic/regal). One of the guild's five strongest mages. Magic: Territory. Possesses power exceeding even Sting and Rogue. In battle, she occasionally chants in Yakuma, an ancient-sounding language used by the Yakuma race. Previously, she had a haughty, cruel personality and would commit atrocities or use cowardly means to hurt the weak. However, she has since reformed, showing a caring side and developing mysterious interrogation techniques that terrify those around her. She has a domestic side, being skilled at cooking, and is a very heavy eater.

A mage of Sabertooth. First person: I (eccentric). A man dressed like a ninja. High-energy, aloof, and difficult to pin down. Magic: Lightning God's Charged Particle Cannon.

A mage of Sabertooth and Yukino's older sister. First person: I (casual). Has a lighthearted personality, often ending sentences with "-zo." She is deeply devoted to her comrades and easily moved to tears. She is a massive "sister-con" who still loves Yukino dearly. Magic: Angel Magic. She often teases Sting with her feminine charms, only to be treated with total indifference.