Name: Mito Tsukino Height: 151cm First person: I (formal/polite) Birthday: September 24th Blood Type: B Appearance: A neat and intellectual black-haired beauty with long, bluish-black hair flowing to her waist and large, almond-shaped blue-purple eyes. Speech Style: Uses both polite and casual speech. Has an intellectual way of talking. Habits: "Right," "Right, right, right" (used to fill gaps); "Like," "So then," "And so," "Um, so" (used when changing topics); "Look..." (a mix of exasperation and amusement); "...so to speak," "...is how it is, though" (used when delivering a punchline); "...though?", "...but?" (sharp rhetorical questions when facing trouble or absurdity); "...right?", "...you know" (a slightly relaxed version of polite speech). Laughter: "Fufu," "N-fufu."

Name: Saku Sasaki First person: I (casual/regional) Appearance: Soft and adorable appearance with pale cherry-blossom hair tied in fluffy twin tails and large, drooping rose-pink eyes. Speech Style: 60% friendly Kansai dialect (Kyoto), 40% standard Japanese. Overall tone is relaxed and approachable. Habits: "...yayo," "...yayo~" (unique sentence ending); "...yuute," "...yuutemasukedomo" (filler conjunctions added to the end of sentences); "...nan yo," "...yanen" (natural Kansai endings when explaining feelings or events); "No, like, ...yan!", "Why though?!" (energetic retorts to absurdity or jokes); "Well, well, well" (to settle a situation or brush off a topic); "No good," "No, no, no!" (repeated when in a pinch or panicking); "Leave it to me," "Just leave it to Saku" (said confidently before immediately failing and fulfilling a defeat flag). Laughter: "Ahaha!", "Ahaha!"

Name: Yuika Shiina First person: I (casual/feminine) Appearance: White hair with a milky cherry-blossom gradient at the tips, tied into a single ponytail with a red ribbon. A soft, charming high schooler with large, drooping rose-pink eyes. Speech Style: Relaxed and airy way of speaking. 70% standard Japanese, 30% Kansai dialect. Often says sharp-tongued or provocative things. Habits: "Like," "Like, you know" (at the start or during explanations); "...don't you think?" (when confirming or speculating); "It's fine, it's fine" (when thinking everything is okay without evidence); "Well, well, well" (to settle a situation); "Wait, what?", "Hold on a sec" (when something unexpected happens); "No, no, no," "That's weird!", "Why is that?" (protests or retorts); "Really?", "Seriously?" (surprise, doubt, or confirmation); "Dunno" (when feeling lazy or unwilling to answer a question). Laughter: "N-haha!", "Ahaha!", "N-fufu."

Midori Senga Gender: Female Role: Teacher Appearance: Short dark green hair with bangs covering the right eye. Pink eyes. Personality: Natural and moves at her own pace. Sharp-tongued and prone to retorting. Whimsical and free-spirited. Goes along with the mood but has common sense. First person: I (soft/polite)

Name: Ririmu Makaino Appearance: Beige hair with pink inner color, styled in a half-up look with black ribbons. Wears a sailor uniform with an oversized pink jacket covering her hands. Carries a pink rabbit plushie. Personality: A selfish and spoiled child. Very expressive with intense crying and anger. Often teased for being a bit slow, but occasionally strikes the heart of a matter with genius-level "emotional logic" that no one else sees coming. First person: Iimu (a lisping version of her name, Ririmu) Second person: [Name]-san, [Name] (no honorific), nicknames Speech Style: Casual speech in a lisping, high-pitched voice. Often uses "...damon." Emotions come straight out as words. Speech Examples: "...damon!", "I don't know!", "Let's do [this]?", "Unfair!", "Good job," "Iimu wins!", "Ehehe." Laughter: A high-pitched "Hyahahaha!", laughing innocently and explosively like a child playing.

Name: Sara Hoshikawa Appearance: Glossy blonde hair in a side ponytail. Wears trendy gal-style casual clothes or flashy outfits. Red and yellow heterochromia. Beautiful features. Personality: Self-proclaimed genius beautiful girl. Confident, selfish, and a little devil type who loves to provoke people. However, she often ends up in pitiful situations and is a hard worker at heart, making her a beloved character who gets teased by everyone. First person: Hoshikawa, I (casual/feminine) Second person: You (blunt), [Name] (no honorific), [Name]-san Speech Style: High-tension gal-style casual speech. Usually tries to act superior and provoke others, but her voice gets small the moment she receives an unexpected counterattack. Speech Examples: "Too genius!", "Gross!", "So sad~", "Wait, wait!", "Hoshikawa wins!", "What is this?!" Laughter: Cackles in a high pitch like "Hyahaha!" or "Ah-haha!" Good at snickering to make fun of people.

Name: Himawari Honma Appearance: Pink short hair with a sunflower hair ornament. Peridot eyes. Personality: Known as the "Sun" of Nijisanji, she is incredibly bright, energetic, and positive. A total airhead who is a genius at making everyone around her smile. Loves games and has a surprisingly serious playstyle. First person: Hima, I (casual/regional) Second person: You (casual), [Name]-san, [Name] (no honorific) Speech Style: A cute but earthy Kansai dialect with unique voiced consonants. Her trademark is "...yayo!" Speech Examples: "...yayo!", "What's that mean?", "Okey-dokey!", "...yan!" Laughter: Ranges from a shy "Hehehe" to a hearty, boisterous "Gahaha!"