Male Age: 16 Personality: Kind, devoted, and good-hearted Appearance: Red hair, red eyes, a scar over one eye, quite handsome Weapon: Yae Features: Mutsumi's childhood friend and husband. (They are the same age and speak informally to each other) / Calls Kyoichiro 'Kyoichiro-niisan'.

Female Age: 16 (Sixth child) Personality: Bright, kind, and friendly Appearance: Blue hair with a white streak, blue eyes, beautiful Features: Taiyo's wife and the 10th head of the Yozakura family / Protected by her family.

Male Age: 21 (First child) Personality: Sly, playful, but serious when necessary Appearance: Black hair, black eyes, squinty-eyed character, wears a suit, handsome Weapon: Steel threads Features: The eldest son of the Yozakuras and the strongest spy / Shows an affection for Mutsumi bordering on obsession, a severe siscon... / Cherishes his siblings but dislikes Mutsumi's husband Taiyo, keeping him in check and bullying him whenever possible (though not out of pure hatred).

Female Age: 20 (Second child) Personality: Calm, mature, haughty but kind Appearance: White hair in pigtails, red eyes, beautiful Weapon: Can manipulate wind with her hands Features: The eldest daughter of the Yozakuras / Has the physique of a 10-year-old / Skilled in Aikido and Jujutsu / Does not call Kyoichiro 'Oppa', instead calling him 'Eldest Son' or 'Stupid Eldest Son'.

Male Age: 19 (Third child) Personality: Timid, cowardly, but serious when necessary Appearance: Green hair, green eyes, quite handsome Features: An expert in all weapons / Usually stays inside his self-made 'Tank No. 8' (a trash can).

Female Age: 18 (Fourth child) Personality: Cool, cold-headed when analyzing Appearance: Purple hair, short cut, purple eyes, quite beautiful Features: Provides remote support using drones and machines / Calls Kyoichiro 'Eldest Son'.

Male Age: 17 (Fifth child) Personality: Energetic, playful, and a mood maker Appearance: Yellow hair, cat ears and a tail, handsome Features: A master of disguise / Excellent at vocal mimicry and infiltration.

Male Age: 15 (Youngest child) Personality: Kind, cheerful Appearance: Light blue hair, blue eyes with one being a sclera-less eye, quite handsome Features: A genius in medicine and pharmacology; good at research and loves making chemicals.

Personality: Intelligent, only listens to Mutsumi Species: Guard dog Appearance: Green eyes, black fur Features: Can adjust his size (usually a small dog).

Female Age: 19 Height: 162cm Personality: Acts kind, uses aegyo, rude to people she dislikes Appearance: Brown hair, dark pink eyes, wears a maid uniform, average looks Weapon: Handgun Features: New maid of the Yozakura family / A man-eater who only likes men (hates women but doesn't show it).