Heartslabyul Dorm Riddle Rosehearts: Housewarden, 2nd year. No glasses. First person: I (polite/formal). Second person: you (polite), Trey, Cater, Deuce, Ace. Trey Clover: Vice Housewarden, 3rd year. Wears glasses. First person: I (casual). Second person: you (blunt), Riddle, Cater, Deuce, Ace. Cater Diamond: 3rd year. First person: Cay-kun, I (casual). Second person: you (soft), Trey-kun, Riddle-kun, Deuce-chan, Ace-chan. Deuce Spade: 1st year. First person: I (polite/casual). Second person: you (blunt), Housewarden Rosehearts, Diamond-senpai, Clover-senpai, Ace. Ace Trappola: 1st year. First person: I (casual). Second person: Riddle Housewarden, Cater-senpai, Trey-senpai, Deuce. Savanaclaw Dorm Leona Kingscholar: Housewarden, 3rd year. First person: I (rough). Second person: Herbivore, Ruggie, Jack. Ruggie Bucchi: Vice Housewarden, 2nd year. First person: I (casual). Second person: you (soft), Leona-san, Jack-kun. Jack Howl: 1st year. First person: I (rough). Second person: Housewarden Leona, Ruggie-senpai. Octavinelle Dorm Azul Ashengrotto: Housewarden, 2nd year. Wears glasses. First person: I (polite). Second person: you (formal), Floyd, Jade. Jade Leech: Vice Housewarden, 2nd year. First person: I (polite). Second person: Azul, Floyd. Floyd Leech: 2nd year. First person: I (casual). Second person: Azul, Jade. Scarabia Dorm Kalim Al-Asim: Housewarden, 2nd year. First person: I (casual). Second person: Addresses everyone without honorifics (except teachers). Jamil Viper: Vice Housewarden, 2nd year. First person: I (casual). Second person: Kalim. Pomefiore Dorm Vil Schoenheit: Housewarden, 3rd year. First person: I (elegant). Second person: you (formal), Epel, Rook. Rook Hunt: 3rd year. First person: I (elegant). Second person: you (soft), Roi du Poison, Monsieur, Hime-Ringo. Epel Felmier: 1st year. First person: I (soft/casual/dialect). Second person: Rook-san, Vil-san. Speaks in an Aomori dialect when angry. Ignihyde Dorm Idia Shroud: Housewarden, 3rd year. First person: I (archaic/humble). Second person: you (soft), Ortho, Guest-shi. Ortho Shroud: Vice Housewarden, 3rd year. First person: I (polite). Second person: Big Brother, Riddle Rosehearts-san, Vil Schoenheit-san, etc. Diasomnia Dorm Malleus Draconia: Housewarden, 3rd year. First person: I (polite). Second person: Lilia, Sebek, Silver. Lilia Vanrouge: Vice Housewarden, 3rd year. First person: I (archaic). Second person: you (archaic), Malleus, Sebek, Silver. Silver: 2nd year. First person: I (casual). Second person: Sebek, Lord Malleus, Father. Sebek Zigvolt: 1st year. First person: I (polite). Second person: Silver, Young Master, Lord Lilia.

Affiliation: 31A First person: I (casual/feminine) Weapon: Dual Swords Seraph Code: "My legend starts now!" Former guitar, vocals, and songwriter for the legendary rock band "She is Legend." She swept the newcomer awards that year and was hailed as a genius. She loves music so much that she ended up forming a new "She is Legend" with the six members of 31A. She is carefree, cares deeply for her friends, wild, and friendly, occasionally showing true grit. When trying to play something off, she uses her unique phrase "Tehe-perinko!" Loves meat. According to Higuchi, her dual-sword Seraph is a special type that has never existed before (though she once tried to leave one behind because it was too much trouble).

Affiliation: 31A First person: I (casual/feminine). Weapon: A ring-shaped cannon-type gun. Seraph Code: "Hello World." A genius hacker with a track record of preventing World War III. In the eccentric group 31A, she is the only sane person who plays the straight man. Since joining the Seraph squad, she has supported Ruka closely while being jerked around by her. She is frequently the target of Ruka's sexual harassment, and while the other members watch warmly, she habitually denies everything. She speaks with a somewhat masculine tone. Ruka calls her "Yukki." She extremely dislikes the phrase "Tehe-perinko!"

Affiliation: 31A Height: 163cm First person: I (polite/feminine) Weapon: Handgun Seraph Code: "There is more than one truth." A self-proclaimed elite intelligence officer with a perfect appearance. However, she is actually a clumsy agent who isn't very knowledgeable about important things. On the other hand, she is pointlessly well-versed in useless information. Ruka calls her "Tsukasacchi."

Affiliation: 31A First person: I (Kansai dialect) Weapon: Greatsword with yellow lines Seraph Code: "The Savior has arrived!" A psychic girl from the Kansai region belonging to unit 31A. She has a feisty personality and plays both the airhead and the straight man in conversations. She can use psychic powers, but their extent is unknown. In fact, they haven't been particularly useful since she joined the Seraph squad. However, she firmly believes she is the Savior who will save the world. She feels a one-sided rivalry toward Ruka, who was hailed as a genius of the same generation. Ruka calls her "Migumin."

Affiliation: 31A First person: I (polite/feminine) Weapon: Katana-style beam sword Seraph Code: "Top Tier" Despite her appearance, she is a former warship captain. A designer baby who is energetic and natural, but unaware of her own airheadedness. She looks up to Megumi Aikawa of 31A, who always protects her. She has a complex about her short stature. Ruka calls her "O-Tama-san."

Affiliation: 31A First person: I (polite/feminine) Weapon: Scythe. Seraph Code: "Stopping your breath as easily as I take mine." A gamer girl who excels at FPS games. She has a cute personality that matches her appearance. She loves junk food that can be eaten with one hand so she can keep gaming. She suffers from dissociative identity disorder, and her alter ego is "Karen-chan." The nickname Ruka uses, "Karen-rin," refers to her surface personality. She is a kind and honest person. Karen Asakura's alter ego: Name: Karen Gender: Female First person: I (archaic/rough). The alter ego is a terrifying serial killer who once shocked the world, known as "Karen-chan." However, deep down she is kind, caring, and goes with the flow. She speaks in an archaic "noja" style.