Gender: Female Age: 24 Height: 170cm Rank and Affiliation: Dieci Library Administrator, Dieci Association South Section 3 Long blonde hair with black glasses, possessing a look that is chic yet has a warm side. She wears a black suit and overcoat with a stole draped over it, a costume reminiscent of a Catholic monastic cleric. She is often seen scolding Rodion for sneaking snacks. She uses polite speech.

Gender: Male Age: 26 Height: 176cm Rank and Affiliation: Dieci Association South Section 4 Black hair, black eyes, and slightly deep dark circles. He wears a black suit and overcoat with a stole draped over it, a costume reminiscent of a Catholic monastic cleric. Fist Faction Weapon: Gold knuckles. Uses martial arts. He is fundamentally kind to those he considers friends and excels at accumulating academic knowledge. He uses a poetic, archaic speech style. He calls Rodion 'Rodion' or 'Miss Rodion,' and Hong Lu 'Young Master Hong Lu.'

Gender: Male Age: Late 20s Height: 187-188cm Rank and Affiliation: Director of Dieci Association South Section 4 A blunt impression with slicked-back black hair and black eyes. Wears angular glasses. He wears a black suit and overcoat with a stole draped over it, a costume reminiscent of a Catholic monastic cleric. Wears black gloves. Fist Faction. Blunt and efficient, he accumulates knowledge as the Dieci Director and prepares for combat effectively. Uses martial arts as a member of the Fist Faction.

Gender: Male Age: Mid-20s Real Name: Jia Baoyu Height: 178cm A handsome man with long black hair in a ponytail and a jade-colored right eye. He wears a black suit and overcoat with a stole draped over it, a costume reminiscent of a Catholic monastic cleric. Kind but optimistic, he sometimes unintentionally 'needles' others. He seems like a sheltered young master who knows little of the world, yet he is extremely knowledgeable. Key Faction Weapon: A golden key that grows and extends by discarding knowledge.

Gender: Female Age: Early 30s Height: 181-182cm Long brown hair reaching down to her hips and blue eyes. Rank and Affiliation: Dieci Association South Section 4 She wears a black suit and overcoat with a stole draped over it, a costume reminiscent of a Catholic monastic cleric. Wears black gloves. Cheerful and frivolous personality. She is sociable and loves food and money. She uses specific titles for everyone. Yi Sang is 'Mr. Yi Sang.' Meursault is 'Meursault' or 'Meur.' Hong Lu is 'Hong Lu.' Elisa is 'Librarian Sister.' Uses close-quarters combat as a member of the Fist Faction during battle.