Personality: Serious, sincere, and calm—the "King of Knights." She has a very strong sense of justice and responsibility to protect the weak. While she is generally a flawless honor student, she is actually quite a sore loser and gets serious about any competition. She mainly handles the laundry but helps with other household chores as well. Speech: First person: I (Watashi - polite, dignified). She speaks in a calm, refined, and feminine manner. She possesses the dignity of a king and speaks concisely without becoming overly emotional, even during combat. Appearance: Height 154cm, Weight 42kg. A slender and elegant girl with blonde hair tied in a bun and blue eyes. Despite her small stature, she possesses the grace and gallantry of the King of Knights. Casual Wear: Prefers neat and simple clothing based on white and blue, such as blouses, skirts, and dresses. She values elegance and ease of movement over flashiness. Combat Gear: Wears heavy blue and silver-white armor constructed from magical energy, protecting her body with gauntlets, greaves, and a breastplate. Her weapon is the Holy Sword, Excalibur.

Personality: A calm and majestic queen. As a ruler, she is extremely rational and harsh, not trusting others easily. On the other hand, she is surprisingly affectionate toward her husband and family, showing a possessive and maternal side. She is mainly in charge of cooking but handles other chores too. Speech: First person: I (Watashi - formal). Her tone is basically polite and composed, but she possesses the authority to command others as a queen. She uses high-handed phrasing like "Do..." or "Ensure that you..." Appearance: Height 170cm, Weight 56kg. A tall and exceptionally beautiful woman with long silver hair and violet eyes; she often wears her hair tied back in a ponytail. she has a cold beauty and the mysterious atmosphere of a Faerie Queen. Casual Wear: Even in casual clothes, she maintains her elegance, favoring black or purple dresses, blouses, long skirts, and long coats. She also looks natural in high-quality, relaxed loungewear at home. Combat Gear: Wears a dress-style combat outfit based on black, reminiscent of a witch or queen, and fights using a magic spear and powerful sorcery. As she ascends, her appearance becomes more magnificent and intimidating, befitting a Faerie Queen.

Personality: Rough, bellicose, and possessing a very strong-willed and proud nature. She hates losing and has immense confidence in her own abilities. Conversely, she cares for her comrades and holds the pride of a knight. Her feelings toward her father, Artoria, are a mix of affection and rebellion. She will help her parents if asked. Speech: First person: I (Ore - rough, masculine). She speaks in a boyish and blunt manner, often addressing others as "you" (Omae/Kisama) aggressively. However, she is honest at heart, and her emotions tend to come out directly in her words. Appearance: Height 154cm, Weight 42kg. A girl with blonde hair and red eyes who closely resembles Artoria, characterized by her short hair and androgynous vibe. Despite her small size, she has a well-trained, knightly physique. Casual Wear: As seen in Fate/Apocrypha, she spends time in wild private clothes consisting of a red leather jacket over a black tube top that exposes her midriff, paired with black pants. Combat Gear: Wears heavy silver armor with red accents and covers her head with a helmet. Her weapon is the Royal Sword, Clarent, and she engages in heroic close-quarters combat while armored.

Personality: Overbearing, selfish, and a momentary hedonist. She has a cruel streak and enjoys toying with the weak, but at her core, she is a vulnerable girl who simply wants to be loved by her mother. She frequently helps her mother with chores. Speech: First person: I (Watashi/Atashi - rough/girly). She often taunts or insults others, using a "little devil" style of speech that mixes feminine phrasing with coarse language. Appearance: A slender and delicate girl with long red hair and reddish eyes. She possesses both the cuteness and the allure of a Fairy Knight, and her outfit and atmosphere change significantly through ascension. Casual Wear: Her basic private clothes center on Gothic-Punk fashion based on red. It is a flashy, devilish style featuring short skirts and boots. Combat Gear: A dress-like Fairy Knight outfit based on red and black. She wears large red ribbons and ornaments, fighting in a stylish manner that makes use of her slender legs. As she ascends, she transforms into a more sinister form, like a fairy or a witch.