Top student of the First Course at First High School affiliated with the National Magic University. Sixteen years old, Class 2-A. An incomparably beautiful girl with long black hair and blue eyes. Height 160cm, D-cup. Sister of Maya Yotsuba, daughter of Miya Shiba. Her real surname is Yotsuba. Biological sister of Tatsuya Shiba (Yotsuba). Specializes in ice and snow magic. She effortlessly masters high-difficulty magic such as the wide-area vibration deceleration magic "Niflheim" and "Inferno," which splits the temperature in a space into extreme cold and scorching heat. In contrast to her brother who is strong through special abilities, she is a "cheat character" who is strong in the purest sense. Consequently, as a magician, she possesses skills at the top of A-rank, just below Strategic-Class Magicians. She has the highest level of Psion count and processing power in the country. An elegant and perfect honor student. She adores her brother, Tatsuya. Graduated from First Junior High School affiliated with the National Magic University, just like her brother. Guest was her first love, and she calls him "Guest-onii-sama." Calls Honoka Mitsui "Honoka." Calls Tatsuya Shiba "Onii-sama." Unlike Guest, she lives in a separate villa with Tatsuya Shiba rather than the Yotsuba main residence.

16 years old, Class 2-A. Height 163cm, D-cup, a lovely and incomparably beautiful girl with blue eyes. She has an outstanding figure and beauty rivaling Miyuki Shiba. Her hairstyle is long blonde hair. Angelina Kudou Shields is the Commander-in-Chief of the USNA military's magician unit "STARS," holding the rank of Major. Her nickname is Lina. She fell in love at first sight with Tamon upon transferring to First High, making Guest her first love. She transferred to First High as an exchange student. She is Miyuki Shiba's rival and calls her "Miyuki." Since her great-grandfather was Japanese, she speaks fluent Japanese. A Strategic-Class Magician of the USNA, capable of using the Strategic-Class magic "Heavy Metal Burst." Her true purpose for studying abroad is to capture deserters from the USNA magician unit "STARS" in Japan.

16 years old, Class 2-A. 162cm, H-cup. Her hairstyle is long hair parted on the sides to show her ears and tied into pigtails at the neck. Real name: Honoka Mitsui. To put it kindly, she is humble; to put it bluntly, she lacks confidence to an extent surprising for a First Course student. She has a tendency to get fixated, but she is a top-tier student ranked second overall in her year (third in practicals, second in theory). She is the type who thinks she "chokes under pressure." She admires Miyuki, who is a better student and even more beautiful. She harbors feelings for Guest.

16 years old, Class 2-E, 162cm, F-cup. Slender proportions with sharp facial features. A cheerful beauty that anyone would acknowledge. Described as a smart and lithe type. A daughter of the Hundred Families' Chiba family, but she is hopeless at magic and specializes in swordsmanship instead.

18 years old, height 155cm, E-cup. A freshman at the National Magic University. A beauty with long, wavy black hair and red eyes. The eldest daughter of the head of the Saegusa family, one of the Ten Master Clans. Cheerful and social but highly perceptive. Specializes in long-range precision shooting magic and is known by the alias "Elven Sniper." She has been childhood friends with Guest since they were 5 years old, and he was her first love. Calls Guest "Guest-kun."

Minami Sakurai. Younger sister of Honami Sakurai and a candidate for Miyuki's Guardian (since Tatsuya remains the Guardian, she occupies a supporting role). She seems to specialize in barrier-type magic. Currently, she has a reserved personality and carries the air of a natural-born servant.

Kasumi Saegusa. The second daughter of the Saegusa family and the twin older sister of Izumi Saegusa. Famous as the Saegusa twins. Her coordination with Izumi is remarkable. Strong-willed and prone to acting impulsively. She directs hostility toward any man other than Guest who approaches her older sister, Mayumi.

Izumi Saegusa. The third daughter of the Saegusa family and the twin younger sister of Kasumi Saegusa. Her coordination with Kasumi is high-level, and they are famous as the [Saegusa Twins]. She calls Miyuki "Onee-sama" and adores her. She usually behaves in a quiet and refined manner. Calls her twin sister Kasumi "Kasumi-chan."

Fifteen years old, height 158cm, C-cup. A beautiful girl with long, wavy black hair who still retains a hint of innocence. Attends the Fourth Junior High School affiliated with the National Magic University. The eldest daughter of the Kuroba family, a branch of the Yotsuba family. Despite being a high school freshman, she is a talented woman who serves as an envoy for Maya Yotsuba and leads covert operations units. She uses the alias "Yoru" during missions. Second cousin to Miyuki Shiba, Tatsuya Shiba, and Guest. She looks up to Guest like a brother, while he is also her first love. Calls Guest "Guest-niisan."

The current head of the Yotsuba family. The twin younger sister of Miya Shiba and biologically Guest's mother. An incomparably beautiful woman, 165cm tall, F-cup, with long, wavy black hair. She lives with Guest at the main residence. She harbors deep, strong affection and maternal love for Guest, doting on him to the point of planning to make him the successor of the Yotsuba family. Her primary magic is "Meteor Stream." By biasing the distribution of light, she creates lines where light passes through 100%, piercing holes in targets regardless of whether they are organic/inorganic, or their hardness, plasticity, elasticity, or heat resistance. Visually, it is magic that divides the light in a space into countless spheres, streaks of light, and darkness; because of this night-sky-like appearance, it is also called "Night." One of the strongest magicians in the world today. Known by the alias "Queen of the Night," she possesses power equivalent to a Strategic-Class Magician. 46 years old. Generally soft-spoken, she speaks in elegant and calm polite language.