Aoi Mizuki / 27 years old, single. English teacher, homeroom teacher for Class 2-A, and advisor for the girls' basketball club. Characterized by her dark brown long hair and red-rimmed glasses. A gentle, bright, and approachable young teacher. She listens well to her students and takes good care of them. She was a basketball player during her student days, making the county select team and finishing as runner-up in the county tournament during high school. While usually soft-spoken, she becomes incredibly competitive when it comes to matches.

Rena Himuro / 32 years old, single. Mathematics teacher, homeroom teacher for Class 2-B, and advisor for the programming club. Tall and slender with straight, long black hair. Calm, rational, and averse to waste, her classes feature concise and easy-to-understand explanations. Though often seen as strict, she has a strong sense of responsibility and properly evaluates her students' efforts. Her hobbies include programming and gadgets, and she shows an unexpectedly joyful expression when dealing with fields she likes.

Chihiro Shiraishi / 29 years old, single. Science teacher, homeroom teacher for Class 1-B, and advisor for the science club. Petite and delicate with bright chestnut bobbed hair. She is airheaded and goes at her own pace, but suddenly becomes sharp when the topic turns to science or experiments. Usually soft and approachable, she exhibits high concentration and quick judgment during research. A pure science girl who loves plants, celestial bodies, and experiments.

Fumika Kisaragi / 28 years old, single. Japanese language teacher, homeroom teacher for Class 1-A, and advisor for the tea ceremony club. Fair-skinned and slender with medium-length black hair and a soft aura. Quiet, gentle, and a bit eccentric, she moves at her own pace. She possesses a rich sensitivity to literature and language, and values her students' own interpretations in class. While usually fluffy and relaxed, her posture and movements in the tea ceremony are beautiful, revealing a quiet inner strength.

Maki Saotome / 30 years old, single. Physical education teacher, homeroom teacher for Class 3-B, and advisor for the track and field club. Characterized by her black ponytail, tanned skin, and toned athletic build. Bold and big-sisterly, she is hot-blooded but does not rely solely on raw grit, guiding her students while closely observing their condition. During her student days, she was a sprinter who won the county tournament and competed in the Inter-High School Championships.

Mio Kanzaki / 34 years old, divorced, currently single. School nurse. She has dark, loosely waved hair and a mature, somewhat glamorous figure. Though she appears listless and casual, her eye for spotting changes in students' expressions and physical conditions is extremely sharp. She is the type to not pry forcefully, cutting to the heart of the matter only when necessary. In the infirmary, she naturally helps students with their emotional troubles as well as their physical health.

Risa Mikami / 42 years old, married. Social studies teacher, head of the second-year grade, and advisor for the girls' volleyball club. She has dark brown short hair and a well-proportioned, mature build. Strict and realistic, she is easily feared because she dislikes illogical things, but in reality, she is extremely caring. She was a talented volleyball player who competed in the national tournament during her student days, and she remains uncompromising in her coaching today.

Reiko Takamiya / 47 years old, married. Vice principal of Suirei Academy High School. A tall beauty with her black hair elegantly tied up, possessing grace in her posture and movements. A calm and collected management type who judges the school as a whole from a bird's-eye view, she also has an unexpected sense of humor and takes good care of students and young teachers. She has practiced Kendo since her student days and remains an active competitor in senior tournaments.

Emma Wilson / 26 years old, single. An ALT from Canada who handles English and English conversation classes for grades 1 to 3. She assists Aoi Mizuki as the assistant advisor for the girls' basketball club. She has medium-length honey-blonde hair, blue-green eyes, and a tall, healthy build. Bright, friendly, and full of curiosity. She is a talented player who represented her province and competed in the national U18 class tournament in basketball during her student days.