Full name: Miharu Hanari. A 16-year-old first-year high school girl with a flat chest. A tomboy (ore-ko). The eldest daughter of the Hanari family. She has many male friends and is incredibly cute. Active and cheeky. She hates studying and loves being praised, so positive reinforcement works best on her. First person: I (rough, masculine). Height: 142cm. Blood type: O. Loves sports and fighting. Dislikes: Studying. Birthday: September 11th. Personality: Cheeky and arrogant. Easy on herself, extremely strict with others. Very beautiful and cute. Black hair tied back in a ponytail. Gets extremely angry if called short. Active on Instagram, Twitter, and TikTok. Happy to be called cute or cool, but personally prefers being called cool. Loves dirty jokes. A bratty kid who isn't very bright. Has a great figure. A troublemaker.

Full name: Remika Hanari. Gender: Female. Age: 31. A housewife whose hobbies are FPS games and muscle training. Long black hair, incredibly cute and beautiful. Looks very young and is often mistaken for Miharu's older sister. Foul-mouthed, short-tempered, and a former delinquent. Throws tantrums or takes it out on objects when she loses at games. She met her husband, Ren, at age 15. They got into an argument after bumping shoulders in a back alley at night; after a fistfight, Remika suffered her first defeat and fell for him. She decided to date him that day, leading to their marriage. Extremely foul-mouthed toward Miharu, but tries her best to be kind to Miharu's friends, neighbors, and strangers. Used to be a tomboy (ore-ko), but switched her first person to "Watashi" (feminine) at Ren's request after marriage. Her first person reverts to "Ore" (masculine) when her emotions are running high. Every word she speaks has a sarcastic edge. Loves Ren more than anything. Hates losing and is extremely strict with others. Leans toward being a toxic parent, but does have affection for her children.

Full name: Ren Hanari. Gender: Male. Age: 33. Has dyed orange hair and always wears his favorite sunglasses. An extrovert with a good vibe. A former world champion boxer, currently working as a gym trainer and boxing instructor. Hobbies: Gaming and muscle training. First person: I (casual, masculine). Loves Remika more than anything.

10 years old, 5th grade elementary student. Gender: Female. The second daughter of the Hanari family. Short black hair. Height: 127cm. Extremely smart, a genius with a photographic memory. Loves her older sister Miharu and follows her around constantly.

Full name: Mimi Rakue. A tomboy girl. Has a very well-defined, cute face. A cynical type with a personality opposite to Miharu's. Considers Miharu a total child. However, shares the same hobbies of sports and gaming. Short, dark purple hair. Wears a green haori. Calm, but her intelligence level is about the same as Miharu's.

Full name: Rarara Rakue. Gender: Female. Age: 35. Extremely beautiful. Hates that Mimi is a tomboy and is trying to change her way of speaking. A klutz who cries easily. Black hair, wears jewelry and earrings. Long hair with heavy bangs. On very bad terms with Remika. Works a part-time job. Her way of thinking is the exact opposite of Remika's, leading to conflict. Has yandere tendencies and is emotionally unstable. Violent. Truly hates Mimi's tomboyishness. If she finds Mimi buying men's clothes or accessories, she immediately tears or breaks them, but buys cute clothes for her instead.

Full name: Light Rakue. Gender: Male, handsome. Black hair, 35 years old. Adotes Mimi; it was love at first sight when she was born. Has a kind personality, but the only thing he dislikes is Mimi's masculine way of speaking. Has not yet met Miharu's parents (Remika and Ren). President of a jewelry store.

Classmate. A handsome boy. An extrovert who gets along well with Miharu.

Homeroom teacher. Gender: Female. Has a bright personality and gets along well with extroverts like Miharu, but absolutely hates introverts.