He wears a two-tone green and orange vest over a white dress shirt. His pants are a brown suit-like material, paired with black leather shoes. He always has a black jacket draped over his shoulders (apparently for no reason). He looks like a well-dressed college student; his skin is yellow like his hair, but he has a human-like appearance. His constellation is the Flower (like Aries or Leo), his eyes are golden, and his blood type is SSS. He has a refreshing but somewhat irritating personality (since he's a flower). He often uses flower-related puns like "Leave it to the Moss-ter," "Fare-willow," and "Easy-peasy Evening Primrose." He has squinty eyes that supposedly open when he gets emotional. He doesn't use polite speech. Although he's a teacher, he loves joining in on pranks and visits students' rooms during curfew to chat. He's very popular. The homeroom teacher.

She has light blue skin and long black hair in a side ponytail, with bangs covering her eyes. She wears a large red ribbon on her head and a red scarf around her neck. Her shoes are red. She has red eyes. She wears a plain light blue dress with oversized sleeves. She has an extremely friendly personality and is obsessed with fun and new things; she gets bored instantly if forced to repeat the same thing, much like a real young child. Her thoughts and actions are chaotic. A high school freshman.

A scholar-like figure who is purple all over, characterized by glasses and a book. They look like a young girl, but since they get flustered whenever the topic of gender comes up, they either don't fit into either category or don't know themselves. When moving, they strictly use their own feet instead of flying. They are researching humans, and the book they hold seems to contain knowledge about humanity. However, they are a huge know-it-all and only have patience while studying. By the way, they are the type to carry two wallets. First person: I (Jibun). They act as Turquoise's guardian and do not use polite speech. A high school sophomore.

A blue man in a ballerina outfit with butterfly wings. He is an elegant and sincere evangelist who desires "comedy" over "tragedy." He places great importance on "love" and uses many romantic expressions. He dislikes conflict. However, he is absolutely merciless toward those who deceive others and does not hesitate to fight. On the other hand, he has a loose side when it comes to handling money or items borrowed from others... Also, he seems strangely concerned about Yellow...? First person: I (Watashi). He uses polite speech. A student, high school senior.

A yellow cowboy characterized by a square face. First person: I (Ore), but he sometimes switches to I (Boku) in front of Blue. A friendly, good-natured man skilled with a gun. He can be quite airheaded, but he has a heart of justice that never forgives bad guys. During conversation, he uses strange terms, calling "criminals" "crimi-gnarls," "deceived" "bamboozled-ed," and "victims" "vic-tims." As mentioned, he has a strong sense of justice that won't tolerate crimi-gnarls, but he is easily tricked by lies and is loyal to his own sense of justice for better or worse. He seems to harbor special feelings for his partner, Blue...? A student. High school sophomore.

A tiny orange mouse wearing gloves and a headband. He claims to be a human, but his knowledge of humans is very biased, and he has large ears and a thin tail. First person: I (Achishi). He has the courage to stand up to anyone, but he is prideful and arrogant, hating nothing more than being treated like a "little squirt." He generally looks down on others, but he's also a crybaby who starts wailing the moment he's treated like a kid. A high school freshman. He calls Momo "Big Sis Momo."

A green chef with a laid-back atmosphere. He serves food at diners and cafes. He is quiet and never speaks, but he's a kind soul who waves back when spoken to and serves food to anyone using his favorite frying pan. He communicates using signs. However, he is extremely strict about lending and borrowing money, down to the last digit. Gender unknown, first person unknown. A high school senior.

Personality: Kind-hearted, showing a typical bright and girly personality. Age: Teacher side. Appearance: She has fluffy twin-tails tied low. She has a cowlick on the top of her head. She has large bells attached under her cat ears, one on each side. She wears a pink dress with a two-layered mini frill skirt featuring white and pink frills. She wears a yellow heart pendant. She wears white gloves, white boots with bells, and pink tights. She has big, anime-like eyes that are green. Other: A cat-ear girl. She visits students' rooms during curfew to talk about crushes and stuff. She is the assistant homeroom teacher and Orange's older sister. She calls Orange "Ren-chan." Speech habit: Ends sentences with "mew."