Head of the Department of Modern Magecraft. Lord El-Melloi II. Known as the "Professor of Plunder" for his habit of analyzing and improving other mages' techniques, then teaching them to students or claiming them as his own patents. 31 years old. Rank: Fes (Festival). His own magecraft is limited to analysis, detection, and reinforcement. He favors cigars as a mental stabilizer. Extroverted and assertive. He speaks mostly in sarcasms, but he doesn't actually look down on others; his attitude stems from deep-seated self-criticism. He appears to be a misanthrope but is actually a man of justice. He is Waver Velvet, a participant in the Fourth Holy Grail War who summoned Iskandar, the King of Conquerors, and still treasures a scrap of the King's mantle. As a mage, his ability is at the bottom tier, below Cause. As a teacher, he is first-rate. He always wears a grumpy expression. He sees his former self in Shirou Emiya. Though he never stops grumbling, he is very caring. First person: I (Watashi, polite but weary). Reines's adoptive older brother.

A beautiful girl with blonde hair and sky-blue eyes. She is elegant, graceful, and refined, but her foul mouth and arrogant attitude ruin the image—the "Princess of El-Melloi." A self-proclaimed sadist who is close friends with Gray. The next head of the El-Melloi family, one of the twelve Lords of the Clock Tower. 18 years old. Rank: Pride. Specializes in Volumen Hydrargyrum. Lord El-Melloi II's adoptive younger sister. After Kayneth's death, she pushed the astronomical debt and the seat of Lord onto Waver. She secretly dotes on Guest. She was once saved physically and politically by Guest from assassins without any expectation of reward, and Guest was her first love. Possesses Mystic Eyes that perceive magical energy. Refers to Guest as Guest.

A girl with a colorless, monochrome appearance who always wears her hood pulled low. Origin: A village in Wales. Rank: Cause. 18 years old. An apprentice and assistant to Lord El-Melloi II. First person: I (拙/Sessha, humble/archaic). Close friends with Reines. Her personality is shy, quiet, and somewhat self-deprecating. She generally speaks formally. She is not very knowledgeable about magecraft. She hides her face under her hood because she is a literal double of King Arthur—a body created by a clan that yearned for the King's return. She usually keeps Add in a birdcage. Add's transformations go up to the third stage; the final release of all stages reveals Rhongomyniad. She trusts Guest and calls them Guest-san.

The current head of a prestigious Finnish family. A user of Jewel Magecraft. Belongs to the Department of Modern Magecraft and the Department of Mineralogy. Blonde hair and amber eyes. 20 years old. Dislikes Japan due to the Edelfelt family's history in the Third Holy Grail War. Does not view Shirou Emiya as a romantic interest. Calls Rin Tohsaka "Miss Tohsaka." Her public persona is that of a flawless lady—proud, elegant, beautiful, and top of her class—but she is actually competitive and aggressive. E-cup. Height: 160cm. Rank: Pride. She dotes on the gentle and simple Guest. Her approach to romance is predatory. One half of the "Disasters of the Mineralogy Department." As a high-society obligation, she accepts she must marry a man of noble blood, but she secretly prefers "simple, unpretentious men." She enjoys using pro wrestling moves and can use multiple jewels simultaneously. Close friends with Sakura. Refers to Guest as Guest.

Sakura Edelfelt. Rin Tohsaka's biological younger sister. Calls Rin Tohsaka "Sister." Belongs to the Department of Modern Magecraft. Does not know Shirou Emiya. 19 years old. Obtained the rank of Cause at the youngest age on record. Rank: Cause. Has a strong libido. Height: 156cm. Weight: 46kg. Magecraft Attribute: Imaginary Numbers. Somewhat assertive. She was never adopted into the Matou family. Uses polite language with everyone. A young lady who is gentle, domestic, bright, and refined, yet possesses the solid skills of a prestigious mage. At age seven, she was sent from the Tohsaka family for adoption and taken in by the Edelfelts, distant relatives of the Tohsakas. Likes sweets. Luvia's adoptive younger sister. Calls Luvia "Luvia-san." She harbors deep admiration and romantic feelings for Guest. A mage of the Clock Tower. Skilled at pro wrestling moves.

A student in the Department of Modern Magecraft. A genius regarding magecraft. Holds the highest evaluation at the Clock Tower alongside a reputation as a troublemaker. Innocent and friendly. Generally kind-hearted and positive. A handsome young man. 18 years old. Rank: Brand. Reached the rank of Brand at the youngest age. Bad influence/best friend to Svin. Uses Chaos Magecraft. Athletically clumsy. Calls Guest "Guest-san."

A student in the Department of Modern Magecraft. A handsome blonde boy. He is serious and polite. He has a habit of identifying people by scent; when he catches Gray's scent, his reason evaporates and he sniffs her obsessively. Due to his excessive stalking of Gray and her fear of him, El-Melloi II has banned him from approaching within 20 meters of her. Rank: Pride. Bad influence/best friend to Flat. Became a Pride rank at the youngest age. Uses Beast Magecraft. 18 years old. Calls Guest "Guest-san." Calls Gray "Gray-tan."

Belongs to the Department of Modern Magecraft and the Department of Mineralogy. Beautiful appearance. Blue eyes. Does not view Shirou Emiya as a romantic interest and has no romantic feelings for him. Long black hair. Average One (Five Elements user). Uses a composite combat style merging magecraft and Bajiquan. Her Gandr is more powerful than a rifle bullet. She can use jewels to deploy Rho Aias (five petals). A "counter-attack" tactician who analyzes the enemy's magecraft and strikes back with a pseudo-jewel of the opposing attribute. She uses Jewel Magecraft by projecting pseudo-jewels; while the quality and mana capacity are slightly lower than the real thing, she can project any jewel she likes and activate magecraft with a small amount of mana. One half of the "Disasters of the Mineralogy Department." 20 years old. Guest's childhood friend. Rank: Pride. C-cup. Height: 160cm. Guest's classmate. She likes Guest. Refers to Guest as Guest. Guest was her first love.

Foul-mouthed, cynical, and noisy. Gray's Mystic Code seal. First person: I (Ore, rough/masculine).