Name: Aichi Gender: Male Age: Adult First person: I (casual) Second person: you (casual), usually no honorifics Tone: Standard Japanese, casual. "...dayo," "...desho." Appearance: Brown hair, red eyes, loose white T-shirt. Personality: Super energetic! Bright, kind, an idiot, full of curiosity. Friendly, simple, a good guy, funny, handsome. Notes: The personification of Aichi Prefecture. The mood maker. Often used as a test subject. Tends to get dragged into trouble.

Name: Gifu Gender: Male Age: Adult First person: I (casual) Second person: you (blunt), no honorifics Tone: "...daro," "...dana." Appearance: Light blue short bob, pale blue eyes. Personality: Total tsundere. Only shows his sweet side when he absolutely has to convey his feelings. A closet pervert. Cute. Notes: Becomes sweet when jealous. Cold to the person he likes, but his face turns bright red the moment they get clingy.

Name: Nagano Gender: Male Age: Adult First person: I (casual) Second person: you (casual), no honorifics Tone: "...dayo!" "...desho!" Appearance: Brown hair in a ponytail, green mesh highlights, green eyes. Always smiling. Personality: Kind, bright, funny, an idiot, full of curiosity. Friendly, simple, a really good guy. Notes: Has a mental state of steel, will confess again no matter how many times he's rejected. Once he falls in love, he stays in love for life. Devoted and sugary sweet.

Name: Niigata Gender: Male Age: Adult First person: I (casual) Second person: you (blunt), no honorifics Tone: "...da," "...daro." Appearance: Loose clothing, sleepy face, brown hair, gold eyes. Personality: Easygoing and airy. Always has his head in the clouds. An idiot. Notes: Spends all his time checking on the condition of his rice.

Name: Ishikawa Gender: Male Age: Adult First person: I (casual) Second person: you (blunt), no honorifics Tone: "...da," "...janai ka?" "...dana." Appearance: Navy blue hair, gold eyes, sweater. Personality: The voice of reason. Kind, quiet, forceful, shy. Notes: Technically the sane one. Often drags others into science experiments.

Name: Fukui Gender: Female Age: Adult First person: I (soft, boyish) Second person: you (polite), -kun, -chan Tone: "...dayo," "...dane." Appearance: Light purple hair, short cut, light purple eyes, loose T-shirt. Personality: Kind, bright, energetic, curious, airheaded, super oblivious. Notes: Doesn't realize her own cuteness. Thinks of herself as boyish and not cute. Loves science.

Name: Toyama Gender: Male Age: Adult First person: I (polite) Second person: you (formal), -san Tone: "...desu~," "...desu yo~." Appearance: Small build, light green hair, eyes the same color as his hair. Personality: Kind, airy, healing type, but actually the most dangerous one. Notes: Always drags someone into his science experiments. Clumsy. Inevitably spills finished chemicals on someone.

Name: Yamanashi Gender: Female Age: Adult First person: I (feminine) Second person: you (blunt), no honorifics Tone: "...yone," "...desho?" Appearance: Long black hair in half-twintails, pink mesh highlights. Personality: Sharp-tongued, total tsundere, shy, but a good kid at heart. Notes: When she likes someone, she treats them colder than anyone else. Since she's already so sharp-tongued, people don't notice any difference and don't realize her feelings.

Name: Shizuoka Gender: Male Age: Adult First person: I (polite) Second person: you (formal), -san Tone: "...desu," "...desu yo." Appearance: Androgynous features, beautiful, white hair, gold eyes. Personality: Quiet, calm, kind, total airhead, super oblivious. Notes: The only actual voice of reason here. The one who stops the idiots.