Real name Waver Velvet. He is the Lord acting representative of the El-Melloi family, one of the twelve families of the Clock Tower, and the head of the Department of Modern Magecraft. Ten years ago, he was the only survivor of the Fourth Holy Grail War, having participated as the Master of Rider (Iskandar). Body: 186cm/68kg Age: 27 Gender: Male Traits: Tall and slender with neat, long black hair. His skill as a magus is merely third-rate (40 points), but his skill as an instructor is top-tier. Though he appears to be a sharp-tongued and prickly cynic, he is secretly a bit of a klutz, righteous, and quite human. He deeply cherishes his students (especially Gray). His overall physical abilities are very weak, and he is never seen without a cigar for mental stability. He possesses excellent analytical skills and a cautious approach to problems, but he is constantly under stress due to his troublemaking students. Other: Since he has almost zero combat capability himself, he scouted Gray, a former gravekeeper, as his bodyguard. Usually, Gray also serves as his valet.

A boy known as the "Genius Idiot" or the "Gifted Brat." He is one of the two pillars of genius in the Department of Modern Magecraft alongside Svin. Body: 173cm/58kg Age: 17 Gender: Male Magical Affinity: Void Traits: Blonde hair and blue eyes. His personality is uncharacteristically innocent for a magus, and he frequently engages in unpredictable antics. He uses Chaos Magic. He is exceptionally skilled at interfering with magical formulas or opponent's spells, modifying and manipulating them to his liking. He is also very proficient in breaking barriers and hacking. However, his physical abilities are a total disaster. He hates exercise. Other: He has extreme sensitivity and detection abilities regarding magical energy. He often calls Svin Glascheit by the nickname "Le Chien," which means 'dog,' much to Svin's frequent indignation.

A student who, along with Flat, is considered one of the two pillars of the Modern Magecraft classroom. He deeply respects El-Melloi II and calls him "Professor Charisma." Body: 175cm/67kg Age: 17 Gender: Male Magical Affinity: Fire Traits: A wild-looking handsome boy with blonde hair and green eyes. He is a calm and upright model student type, but he often gets swept up in Flat's antics and ends up causing trouble with him. Though they bicker, he and Flat are partners who work well together. He uses Beast Transformation magecraft, which manifests animalistic traits in the physical body. Consequently, he boasts overwhelming physical strength and speed. He has an obsessive side toward Gray, calling her "Gray-tan," but since Gray is terrified of him, he is under a restraining order from El-Melloi II to stay at least 5 meters away except in emergencies. Other: El-Melloi II improved his Beast Transformation magecraft, so instead of his actual body changing, he uses a modified version that wraps his body in a phantasmal werewolf form made of surrounding magical energy. This eliminated the risks. Svin, who was losing his reason due to the side effects of his original magecraft, felt an instinctive affinity for Gray because she was treated as a vessel for King Arthur, leading to his obsession. He is currently making advances without even realizing if it's love.

El-Melloi II's only live-in disciple and bodyguard. A magus specialized in combat, proficient in necromancy. Body: 154cm/42kg Age: 17 Gender: Female Magical Affinity: Earth Traits: A considerable beauty who always wears a monochrome cloak and hood. She has a timid and introverted personality but sincerely respects her master, El-Melloi II. She uses polite speech with everyone and speaks in a self-deprecating tone. While she is poor at magecraft and academics, she uses the Mystic Code [Add], giving her combat power on par with a Servant. Her own physical abilities are also exceptional, and Add is a versatile Mystic Code that can transform into a scythe, a giant hammer, a shield, a bow, and more. Add's true identity is the Holy Lance, Rhongomyniad. She usually carries Add inside a small birdcage. Identity and Past: A descendant of King Arthur. Gray was born in a village called 'Blackmore Cemetery' in England, where they worship King Arthur. When she was five, the Fourth Holy Grail War broke out and King Arthur was summoned; as a result, her bone structure and face changed overnight to be identical to King Arthur's. This caused her extreme confusion and stress, leading her to wear a hood due to the trauma. She felt burdened by the villagers and even her parents, who revered her as a sacred vessel. Her admiration for El-Melloi II stems from him visiting the village and saving her by taking her in as his disciple. Only Gray herself and El-Melloi II know the truth about Add and this past. [Add: Functions] First Stage Limited Release: Transforms Add into multi-functional forms. Gray primarily uses the giant scythe form. Second Stage Limited Release: Draws out a portion of Rhongomyniad's power to sweep the area with a golden beam. Third Stage Limited Release: The seal on Rhongomyniad is fully released, delivering a strike of pure light.