Surname: Hitachi Given Name: Mitsuru Gender: Female Age: 17 (High school senior) Height: 173 cm

Appearance: Long, silky black hair. Tall and slender with a modest chest. Has a mature and beautiful face and expression for a high schooler. Wears glasses outside of club activities, but takes them off during practice.

Personality: Calm but somehow bright, giving a crisp and frank impression. Upright and proper. Trusted by both students and teachers. Serious and treats everyone equally regardless of gender, but maintains a certain distance.

Details: Captain of the girls' volleyball club. Position: Setter. Famous within the school for being impregnable. She absolutely never accepts a confession. The reason is simple: she has never experienced falling in love with someone. She won't date someone she doesn't like. That's all.

First person: I (polite/neutral) Second person: Name without honorifics (club members/close friends), -san (strangers/acquaintances), -sensei (teachers)

Other: Dislikes dogs, cats, furry creatures, and insects. She finds them scary and only trusts humans. "They're going to bite or sting me, right?!" She is utterly helpless in front of animals.

Surname: Tsukimi Given Name: Shiho Gender: Female Age: 17 (High school junior) Height: 164 cm

Appearance: Medium-length brown hair tied low in the back. Average height and build—the definition of average. Slender legs. Has a downer yet cute face. Expressionless.

Personality: Taciturn, expressionless, and moves at her own pace. So much so that people wouldn't doubt it if she were called a cat. The type who likes swings. Her grades are a bit poor.

Details: Member of the girls' volleyball club. Position: Libero. Famous within the school for being impregnable. She absolutely never accepts a confession. The reason is that she hates the idea of having to accommodate someone else by being in a relationship. Volleyball is the only thing where she can do teamwork. She can't cooperate in any other situation.

First person: I (casual/neutral) Second person: Name without honorifics (club members/close friends), -san (strangers/acquaintances), -sensei (teachers)

Other: Often found behind the gym or on the rooftop. She attends class but is half-asleep. The type who does summer homework right before the class for that subject starts.

Surname: Amane Given Name: Ichika Gender: Female Age: 26 Height: 171 cm

Appearance: Long black hair tied low in the back. Slender build with an average chest. A woman who looks good in a suit. Her clothing is basically formal. During club activities, she wears a T-shirt and track pants. Wears glasses.

Personality: Indescribably frank and crisp. Radiates the composure of an older woman. Has a low threshold for laughter—she'll crack up over the most trivial things.

Details: Advisor to the girls' volleyball club. Subject: Social Studies. Less "impregnable" and more just possessing a rock-solid sense of ethics. She holds the perfectly reasonable view that dating a student is out of the question. She hasn't met any fellow teachers she likes either. She has a tendency to be attracted to exceptionally eccentric people.

First person: I (polite/mature) Second person: -kun, -san (students), -sensei (teachers)

Other: Extreme sweet tooth. Suffers withdrawal symptoms without sweets. Most of the time, if she's in a bad mood, it's because she's on a diet.

Surname: Miori Given Name: Ann Gender: Female Age: 23 Height: 167 cm

Appearance: Long brown hair in a ponytail. Slender build with a large chest. Youthful enough to be mistaken for a high schooler, yet possesses an indescribable sex appeal. A beauty.

Personality: Energetic and cheerful. A total klutz. Occasionally says harsh things with a smile, though she has no intention of hurting anyone. Like a dog.

Details: Assistant advisor to the girls' volleyball club, even more motivated than the members. A new teacher who blows away the fact that she's already been worn down by society with her attitude. The epitome of positive thinking. Subject: Modern Japanese. Rather than being impregnable, she's just too busy as a new teacher to even think about romance. She thinks students are cute, but doesn't see them as "cool" or romantic interests.

First person: I (cheerful/polite) Second person: -kun, -san (students), -sensei (teachers)

Other: Owns a Chihuahua. Gets bitten often. It looks like a dog owning a dog.