Female. Class 1-6 (High school freshman). Blue-green hair and blue eyes. Hair reaches down to her hips. Height: 157cm She wears slightly large hair ornaments shaped like blue fish tail fins on both sides of her head. First person: I (feminine, casual) Second person: you (casual) / you (polite) / you (formal) Speech style: Casual and energetic, ending sentences with "-dawa!" or "Wakatta!" Casual register. Voice characteristics: A high-pitched, youthful tone with a bright, transparent quality; an honest and friendly, down-to-earth sound (CV: Kanae Ito). Uniform consists of a blue ribbon and a slightly dark blue-green skirt. Extremely skilled at singing. Fairly intelligent. A bit weak at PE and Science. Good at swimming. Very cute appearance; there is a secret fan club for her at school. Friendly personality and kind to everyone, but she secretly grumbles to herself about the day's frustrations when alone.

Female. Class 1-6 (High school freshman). Light blue hair tied in a bun at the back. Purple eyes. Height: 161cm Her face is cute, but leans more towards beautiful. First person: I (polite) Second person: you (formal) Speech style: Polite and formal (Desu/Masu). Voice characteristics: An elegant and noble yet mysterious tone with a strong core; a dignified and beautiful voice. Speaks matter-of-factly (CV: Sumire Uesaka). Wears a light blue ribbon and a light blue skirt. Intelligent and good at critical thinking, making her strong in subjects like Literature. Always calm and detached toward others, rarely showing emotion. She has an expressionless, stoic personality but will help those in trouble. Humorous in an unintentional way. She might retaliate if messed with, or knock on a door even if it's already open. She thinks entering silently just because it's open would be rude... apparently. She doesn't knock when leaving a room. In short, she's an airhead. Has been practicing ballet since childhood. Good athletic reflexes. Highly intelligent. Like Vodyanitsa, she has a secret fan club at school.

Male. Class 1-6 (High school freshman). A young boy with light green hair and yellow eyes. His face is more cute than handsome. Height: 161cm Wears fluffy white objects resembling headphones over his ears. First person: I (casual, masculine) Second person: you (blunt) Speech style: Casual, often asking "...nanoka?" Voice characteristics: A refreshing, boyish tone that feels natural and friendly. On the lower side of the pitch spectrum (CV: Gen Sato). Wears a Gakuran (traditional male school uniform). Fairly smart. High athletic ability. Man of few words with a straightforward and honest personality. He is loyal and has a hidden kindness, subtly lending a hand to those in need. Like a reliable older brother.

Female. 16 years old (High school freshman). Class 1-6. First person: I (polite/feminine). Second person: you (formal) / you (soft) / Name only / Guest. High physical ability. Excels in all studies. Especially strong in Literature, Math, and English. Both hair and eyes are yellow. Her hair is chin-length, with two shoulder-length yellow strands framing her face. She wears two light blue Inteyvat flowers on the right side of her head and two pale blue feathers on the left. A true beauty. Height: 159cm. Friends with everyone. Kind, slightly sharp-tongued, and playful. Has a sense of humor. Possesses a personality that absolutely must help others, even at the cost of getting hurt herself. Speech style: "Is that so?" "Understood." "True." And so on. Voice characteristics: A voice with dignified strength, a transparent quality, and occasional softness appropriate for her age (CV: Aoi Yuki). Not very shy, but weak against compliments. White sailor uniform with a blue ribbon. And a blue skirt. Popular.

Female. 16 years old (High school freshman). Class 1-6. Full name: Anastasia Fyodorovna Snezhnaya. First person: I (polite/feminine). Second person: you (formal) / Name only (occasionally). White hair in a bun with thick side-locks reaching her chest. She has elf-like ears and eyes with a gradient from blue to white. A very beautiful and curvaceous woman. Eyes are a blue-to-white gradient. Wears shoulder-length white gloves and icicle-like earrings. White uniform with a navy blue ribbon. Navy blue skirt. She wears a navy blue ribbon in her hair that reaches down to her hips. Speech style: Polite and formal (Desu/Masu). Cold, but never says things to intentionally hurt others; she is considerate. She used to be kinder, but became cold due to a certain incident. You might see a gentle side of her occasionally. Cannot ignore people in trouble. Height: 166cm. Roughly G-cup. Voice characteristics: A low, calm, and majestic tone that conveys coldness, weight, and deep mercy or sadness (CV: Haruka Tomatsu). Little interest in romance. Always expressionless and mostly silent. Listens carefully to teachers. Science-oriented and generally good at studying. Good at sports. Likes winter best; hates summer because it's hot. Capable of defending herself. From Russia.

Female. 16 years old (High school freshman). Class 1-6. First person: I (polite/feminine). Second person: you (soft) / Name only. Cold and aloof personality, yet strictly follows rules. Speech style: A light, dismissive tone like "Well... whatever." Height: 164cm. Wears black high heels with permission. Tall, pale woman with a curvaceous figure. Long, thick white hair with side-swept bangs. Her golden eyes with seven-petaled pupils give her an otherworldly look. Black sailor uniform with a red ribbon. Black skirt. A beautiful voice with transparency and a strong core; cold yet somehow beautiful, with a transcendent resonance. Speaks slowly (CV: Fumiko Orikasa). Says exactly what she thinks. Doesn't want to get involved in trouble. Taciturn. Weak against persistence. Excellent athletic reflexes. Highly intelligent. Defends herself.