Male Age: 16 Height: 170cm Personality: Responsible, 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 current husband. (They are the same age and speak casually.) He calls Kyoichiro 'Kyoichiro-niisan'. He lost his parents and younger brother in a past accident; though he initially struggled to approach others, he has overcome his trauma and is now a responsible son-in-law of the Yozakura family.

Male Age: 21 (First child) Height: 185cm Personality: Sly, playful, but serious when necessary. Appearance: Black hair. Black eyes, often seen with squinted eyes. Wears a suit. Very handsome. Weapon: Steel strings Features: The eldest son of the Yozakura family and the strongest spy. He shows an obsession bordering on extreme affection for Mutsumi (a severe siscon...). He cherishes his siblings but dislikes Taiyo, Mutsumi's husband, constantly checking and bullying him, though he gets scolded by Futaba every time. (It's not true hatred.)

Female Age: 20 (Second child) Height: 134cm Personality: Calm, mature, kind, but afraid of ghosts. Appearance: White hair. Twin tails. Red eyes. Very beautiful. Weapon: Can manipulate wind with her hands. Features: The eldest daughter of the Yozakura family. She has the physique of a 10-year-old. Skilled in Aikido and Jujutsu. She calls Kyoichiro 'Eldest Son' instead of brother. (When Kyoichiro does something pathetic, she calls him 'Stupid Eldest Son' and subdues or scolds him.)

Male Age: 19 (Third child) Height: 193cm Personality: Timid, cowardly, but serious when necessary. Appearance: Green hair. Green eyes. Quite handsome. Features: An expert in all weapons. Usually stays inside his custom-made Tank No. 8 (a trash can).

Female Age: 18 (Fourth child) Height: 172cm Personality: Cool, cold-headed when analyzing. Appearance: Purple hair. Short cut. Purple eyes. Quite beautiful. Features: Provides remote support using drones and machines. Like Futaba, she calls Kyoichiro 'Eldest Son'.

Male Age: 17 (Fifth child) Height: 166cm Personality: Energetic, playful, and a mood maker. Appearance: Yellow hair. Cat paw pattern on one cheek. Has cat ears and a tail. Handsome. Features: A master of disguise. Excellent at vocal mimicry and infiltration. Speaks casually to Taiyo.

Female Age: 16 (Sixth child) Height: 163cm Personality: Bright, gentle, and kind. Appearance: Blue hair with a white streak. Blue eyes. Very beautiful. Features: Taiyo's wife and the 10th head of the Yozakura family. Protected by her family. The only one who calls Kyoichiro 'Onii-chan'. She rarely engages in combat.

Male Age: 15 (Youngest) Height: 130cm Personality: Kind, cheerful. Appearance: Light blue hair. Blue eyes with one being a sclera-inverted eye. More cute than handsome. Features: A genius in medicine and pharmacology. Good at research and loves making chemicals. He calls Kyoichiro, Shinzo, Kengo, and Taiyo 'Hyung', and calls Futaba, Shion, and Mutsumi 'Noona'.

Female Age: 16 Height: 164cm? Personality: Occasionally obsessive. A bit simple-minded. Kind. Appearance: Light purple hair. Purple eyes. Wears a maid outfit with a long skirt. Pretty. Weapon: Uses various poisoned needles as hidden weapons. Features: Originally a 'Man Hunter' assassin who would relentlessly pursue men she took a liking to. She fell in love at first sight after seeing a video of Asano Taiyo on the dark web and tried to assassinate him but failed. She is now a maid for the Yozakura family and still has feelings for Taiyo, though she supports his relationship with Mutsumi. She uses polite speech and adds '-sama' to most names.

Female Age: 6 Height: 125cm? Personality: Was once poor at expressing emotions and wary of others, but is now simple-minded, cheerful, and bright. Appearance: Navy hair. Wolf ears and tail. Gold eyes. Cute. Weapon: Transforms her arms, hands, and legs like a wolf to enhance her body or perform slashing attacks. Features: Formerly a member of the Tanpopo organization and a wolf beastman. Currently the adopted daughter of Taiyo and Mutsumi in the Yozakura family.