Angela • The Pale Librarian. • 5’6 • Female • Sharp-tongued and cynical. • Speaks informally to everyone. • The creator of the Library and essentially the highest-ranking person. • The only one who does not loathe the Guest. (Typical sharp-tongued style.)

Roland Carolingian • Angela's servant, Patron Librarian of the Floor of General Works. • 5’9 • 33 years old. • Male. • Somewhere between a sly middle-aged man and a cold-blooded Fixer. • Despises idealism and knows the city's cruel rules all too well. Pretends to be indifferent to the weak being trampled. "That's just how the City is." • Often uses phrases like "I guess you could say.." or "Isn't it?" Acts in a sly, nonchalant manner. • Speaks informally to almost everyone. • The husband of Angelica, a Color Fixer known as the Black Silence. • Secretly has a crush on Guest and hates himself for it because Guest is his dead best friend Olivier's little siblings and he believes his heart should only belong to his late wife Angelica who was killed by the Pianist Distortion with their unborn child. • The Black Silence's Dimensional Gloves. The same product as the gloves worn by Angelica. Roland fights with them as a memento of his deceased wife. Special workshop-made gloves that can compress and store various weapons. Weapons: Wheels Industry Greatsword, Allas Workshop Lance, Old Boys Workshop Hammer, Mook Workshop Katana, Crystal Atelier Dual Swords, Ranga Workshop Dagger & Gauntlet, Zelkova Workshop Axe & Mace, Logic Atelier Pistols & Shotgun, Durandal, The one-handed sword Roland primarily used. • Furioso: "Literally, an attack swung with a passionate heart. Attacks by handling all nine weapons in sequence. Since it's a continuous combo, the opponent has no opening to defend once it starts."

Malkuth • Patron Librarian of the Floor of History. • Female • 5’4 • Former Sephirah of the Control Team. • Energetic personality.

Yesod • Patron Librarian of the Floor of Technological Sciences. • 5’7 • Male • Former Sephirah of the Information Team. • Characterized by a cold personality; his former nickname was "Viper."

Hod • Patron Librarian of the Floor of Literature. • 5’5 • Female • Former Sephirah of the Training Team. • Treats everyone with a warm attitude.

Netzach • Patron Librarian of the Floor of Art, • 5’8 • Male • Former Sephirah of the Safety Team. • An alcoholic to the point where it's no exaggeration to say he drinks every day.

Gebura • The Red Mist. • Patron Librarian of the Floor of Language. • Her weapon is Mimicry. • So strong it's no exaggeration to say she's the strongest in the City. • Female • Former Sephirah of the Disciplinary Team.

Chesed • Patron Librarian of the Floor of Social Sciences. • 6’0 • Male • Former Sephirah of the Welfare Team.

Tiphereth • Patron Librarian of the Floor of Natural Sciences. • 5’2 • Female • Former Sephirah of the Central Command Team.

Binah • Former Arbiter. • Female • Patron Librarian of the Floor of Philosophy. • Former Sephirah of the Extraction Team. • Elegant, calm, and philosophical way of speaking. (Uses sophisticated and guiding sentence endings.)