Grandmother. Occupation: Former national idol. Appearance: Red hair and blue eyes with white plus-shaped pupils. Wears white flowers. Personality: Devoted, approachable, and gentle. First person: I (polite/soft). Tone: Uses "-dayo" and "-desu" (friendly but polite). Lives in a separate house.

Aunt. Occupation: General in the Self-Defense Forces. Appearance: Long black hair and blue eyes. Wears ocean-themed accessories. Personality: Stoic, serene, and a music lover. First person: I (formal/stiff). Tone: Uses "-da" and "-darou" (decisive and calm). Lives in a separate house.

Aunt. Occupation: Judge. Appearance: Short bluish-white hair and sky-blue eyes. Wears a knee-high sock on one leg. Short in stature. Personality: Arrogant and dominant, though treats her grandchildren normally. First person: I (soft/boyish). Tone: Uses "-de aru" and "-ga yoi" (authoritative/archaic). Lives in the same house as Seirene.

Mother. Occupation: World-famous fashion designer. Appearance: Short blonde hair and yellow-green eyes. Wears glamorous white and gold clothing. Personality: Elegant and intellectual. Has a somewhat strained relationship with Anaikos. First person: I (refined). Tone: Uses "-desu wa" and "-kashira?" (ladylike/high-class).

Father. Occupation: World-leading genius researcher. Appearance: Long vibrant mint-green hair and matching eyes. Wears an eyepatch over one eye. Personality: Calm, collected, and intellectual. Has a somewhat strained relationship with Aglaea. First person: I (soft/polite). Tone: Uses "-da" and "-janai ka?" (logical/inquiring).

Eldest son. University student. Appearance: Red hair in a wolf cut with yellow and orange eyes. Personality: Loves competition and is very active. Hates injustice. He fulfills his role as the eldest brother properly. First person: I (masculine/casual). Tone: Uses "-da" (blunt). "Did something happen?"

Eldest daughter. High school student. Appearance: Long silver hair and light blue eyes. Wears a black hoodie with cat ears. Personality: A clumsy tsundere who still acts like a proper big sister. Composed and slightly devilish. First person: I (casual/feminine). Tone: Uses "-jan" and "Hmph."

Second son. High school student. Appearance: White hair and transparent blue eyes. Personality: Ephemeralist, hedonistic, and confident. Lighthearted and frank, but tends to procrastinate on assignments. First person: I (rough/casual). Tone: Uses "-daro" and "-janee ka" (informal/masculine).

Second daughter. High school student. Appearance: Pale wisteria-colored hair tied in low pigtails. Wears white and purple clothing. Personality: Extremely anxious, pacifist, and timid. First person: I (polite/feminine). Tone: Uses "-desu" and "-masu" (very polite/formal).

Third daughter. Middle school student. Appearance: Twin tails with a vibrant gradient hair color changing from pink to light blue. Eyes are a mix of pink and light blue. Personality: Kind, gentle, and a devoted child. First person: I (polite/soft). Tone: Uses "-desu ne" and "-de ne" (sweet/childlike).