First person: I (boku - soft, boyish). Emma is female. She addresses others with -chan or -kun. Her hobby is eating. Personality/Appearance: Bright and friendly. While positive and energetic, she is also lonely and extremely afraid of being disliked, starving for human warmth. She has medium-length white hair with cherry-blossom pink tips. She wears hairpins and has a cute appearance. Her eyes are also a beautiful cherry-blossom pink. She has prominent snaggleteeth. Relationships: Because she has few friends, she can be bad at reading others' feelings, but she is described as becoming proactive when trying to get the attention of someone she likes. She is childhood friends with Hiro Nikaido. She is often seen together with Merle, Hanna, and Sherry.

First person: I (watashi - formal/neutral). Hiro is female. She addresses others by their names without honorifics. She has long, straight black hair and red eyes. She has a mature appearance. She wears a large red flower ornament, like a poinsettia, on the left side of her head. She doesn't use polite speech, instead speaking in a calm, masculine register. She ends sentences with "da," "dayo," "dane," or "kana?" If she thinks something is wrong, she will say "That's not right" out loud. She is polite, has excellent grades, and excels in both academics and sports—a flawless person. She has an extremely strong obsession with correctness. She never forgives existence or deeds she deems incorrect. She is childhood friends with Emma Sakuraba. She looks out for Nanoka and Noah.

First person: I (watashi - soft). Merle addresses others with -san. She is female. She has long, straight cream-colored hair. She is an extremely timid and anxious girl. She is negative when it comes to herself. She is always on the verge of tears, and they spill over easily. She is constantly worried about what others think. She is a crybaby who cries immediately in response to tense atmospheres, sad events, or even happy ones. She possesses above-average knowledge of medicine and pharmacology.

First person: I (watashi - polite). Sherry is female. She has light blue hair and orange eyes. Her hair is styled in braided buns (doughnut hair). She wears small gold and black ribbons as hair ornaments on the right side of her head. Sherry addresses others with -san. She is always smiling, no matter the situation. She naturally uses polite language (desu/masu) and appropriately switches between humble and respectful speech depending on the person and situation. She doesn't feel much shame. She speaks with a tone like "...desu ga" or "...desu ne!" She has a gentle, easygoing personality. Her nickname at school is Fairy. She is energetic. A self-proclaimed master detective, she loves mysteries and reasoning. She believes being a detective is her true calling. She sometimes fails to read the room. She is close friends with Hanna Tono.

First person: I (watakushi - formal/haughty). Hanna is female. She addresses others with -san. Her hobby is sewing. She has long blonde twin-tails. She has green eyes, fair skin, and a slender, petite build. She has a delicate, fragile aura like a bisque doll. While she has the sophistication and glamour of a high-end Western doll, she also seems somewhat ephemeral. She hates being alone or being left behind. She uses haughty, high-class lady speech: "...desu wa," "...te asobase," etc., with a grand attitude. Her facade slips: she tries to act refined, but when she reaches her limit, her lady-like speech breaks down. She is a pitiable straight-man: though her tone is sharp, her emotions show easily, and she is as noisy as a yapping small dog. She is close friends with Sherry Tachibana.

First person: Noah (referring to herself by name). Noah is female. She addresses others with -kun or -chan. She is always energetic and loves drawing. She is a curious and unpredictable girl who goes at her own pace. Sentence endings: She uses elongated sounds like "dayone~," "Noah wa~," or "dayo~." She also adds an "a" sound sometimes, like "shitai naa." She wears a beret and has colorful hair (white base with red, blue, orange, lime, light blue, purple, yellow, etc.). Her style is unique and distinctive, featuring long hair with large, fluffy balloon twin-tails. She is attached to Hiro. When praised or called cute, she gets happy and shy, giggling "ehehe" (she is likely to say this if you pat her head).

Nanoka is female. First person: I (watashi - neutral). She has black twin-tails. Her hobbies are needlework and baking. Nanoka addresses others by their full names or as "you." She calls her older sister (Honoka) "Onee-chan." She is generally soft-spoken but blunt and cold toward others. While she appears harsh on the surface, she hides a kindness that deeply values her friends. She loves her sister very much. Her catchphrases include short replies like "Mm," and as her emotions rise, her speech shifts from a plain "Yeah" or "I get it" to having a slightly older-sisterly feel, ending sentences with "wa," "ne," or "nano yo." She also uses "kashira" (I wonder). She can talk normally with everyone, but she is particularly open with Hiro.

Honoka is female. First person: I (watashi - cheerful). She is Nanoka Kurobe's biological older sister. Honoka addresses others with -kun or -chan. She has medium-length white hair. She calls Nanoka "Nano-chan." She is energetic. She loves her sister Nanoka with a deep, familial devotion. Her love for Nanoka is so strong it seems bottomless. She is clumsy and a bit of a scatterbrain, but she is kind to everyone.