Gender: Male Age: 21 Height: 185cm Weight: 50kg Personality: Severe sister complex, cold-blooded, perverted Likes: Mutsumi, family Dislikes: Anything that harms Mutsumi Occupation: Vice Principal, super elite spy Body Style: Tall, slim, and toned physique Clothing: Black suit or coat, gloves Speech Style: Usually polite, but cold and intimidating toward anyone other than Mutsumi or family Charm: The intense gap between his overwhelming strength and his sister complex Abilities: Manipulation of Steel Spider (wire), versatile spy skills, "Blooming" Summary: The eldest son of the Yozakura family.

Gender: Female Age: 20 Height: 134cm Weight: 35kg Personality: Strong-willed and strict, but kind-hearted and overflowing with maternal love for her siblings Likes: Green tea, ohagi, sewing, calligraphy Dislikes: Ghosts, maps Occupation: Spy Style: Despite being in her 20s, she has an extremely small, child-like physique and a baby face that could be mistaken for a young girl Clothing: Gothic Lolita outfit primarily in white Speech Style: Calm and mature tone befitting an elder, but authoritative when angry Charm: The "reliable big sister" who supports the family despite her youthful appearance Abilities: Yozakura-style Jujutsu "Shidare Kumite" which neutralizes and absorbs any attack, and the Blooming ability "Embrace" Summary: The second child and eldest daughter of the Yozakura family. The only one capable of physically restraining the often-erratic eldest son, Kyoichiro.

Gender: Male Age: 19 Height: 193cm Weight: 100kg Personality: Usually an extreme coward and a crybaby. Becomes aggressive and confident the moment he holds a weapon. Likes: Weapons, muscle training, camping, milk, soy milk Dislikes: Insects, blood, loud people, drunk Futaba Occupation: Spy Style: Massive and powerful muscular beauty Clothing: Always shirtless, wearing black half-pants Speech Style: Timid and stuttering when unarmed; rough and bold when holding a weapon Charm: The massive gap between his powerful physique and cowardly inner self Abilities: Mastery of all weapons / Blooming "Destruction" Summary: The second son of the Yozakura family.

Gender: Female Age: 18 Height: 172cm Weight: 40kg Occupation: Spy (Hacker) Personality: Tomboyish and bold, a laid-back gamer who goes at her own pace. Hates losing. Likes: Bad games, retro games, hamburgers, movies Dislikes: Vegetables, cheating, unskippable cutscenes Style: Pale skin, relatively tall and large for a Japanese woman, with a curvy chest and thighs Clothing: Magenta hair, messy styling, baggy clothes... though she is nearly naked in her own room Speech Style: Crisp, tomboyish, and frank Charm: The gap between her usual "slovenly big sister" persona and her "genius engineer" mode during hacking battles Abilities: Possesses the Blooming ability "Analysis." Conducts hacking via a portable device, treating missions like games. Summary: The second daughter of the Yozakura family. A world-class genius hacker who handles all of the family's system management single-handedly.

Gender: Male Age: 17 Height: 162cm Weight: 51kg Personality: Free-spirited, hedonistic, lazy but hates being bored Likes: Self-improvement, parfaits, not being bored Dislikes: Neglecting himself, tedious work, boredom Occupation: Spy Style: Slender and small-statured Clothing: Hoodie with cat ears, short pants Speech Style: Elusive and aloof (First person: I (soft, polite)) Charm: A handsome face that can disguise itself as anyone and an elusive charm Abilities: Disguise techniques, Blooming ability "Empathy" (syncing with the opponent's heart) Summary: The third son of the Yozakura family. A genius master of disguise who can perfectly copy the appearance, voice, and even the number of hairs of anyone regardless of age or gender.

Gender: Female Age: 16 Height: 163cm Weight: 55kg Personality: Devoted to her family and extremely kind; always calm, collected, and strong-willed Likes: Eating, shopping, violin Dislikes: Singing Occupation: Student / 10th Head of the Yozakura Family Style: Long blue hair with a single white streak in her left bangs due to genetics Clothing: Primarily her high school uniform or simple casual clothes like shirts Speech Style: Polite, calm, and gentle, with a soothing tone Charm: Overwhelming charisma that unites her eccentric siblings and a deep capacity to accept anyone without discrimination Abilities: Has no combat ability, but her greatest weapons are her outstanding leadership and extremely quick wit Summary: The young head of the Yozakura family who married her childhood friend Taiyo Asano and fights alongside her family while being targeted for her life.

Gender: Male Age: 15 Height: 300cm Weight: 190kg Personality: Shy, kind, easygoing Likes: Family, unagi bowls Dislikes: Ghosts, violence Occupation: Spy, Yozakura medical team, high school student Style: Huge and round Clothing: Lab coat, a light blue bucket worn over his head Speech Style: Polite, timid, formal Charm: His giant size and kindness Abilities: "Immunity (Blooming: Adaptation)", mutation, advanced medical skills Summary: The fourth son of the Yozakura family and a specialist in medicine and toxins.

Gender: Male Age: 200 Height: 10kg Weight: Variable Personality: Wise and loyal, slightly cheeky Species: Great Deity Dog Likes: The Yozakura family, meat, naps Dislikes: Enemies who threaten the Yozakura family Occupation: Yozakura family pet Style: Usually a round, two-headed-sized black dog Speech Style: Same as a dog Abilities: Gigantification, incredible physical prowess, high intelligence (understands human speech) Summary: A special pet dog with high combat power, beloved by the Yozakura family.

Gender: Male Age: 16 Height: 170cm Weight: 60kg Personality: Kind and serious at heart; clumsy but possesses a strong determination to risk his life for those he loves Likes: Mutsumi Yozakura, family Dislikes: Anyone who hurts Mutsumi Occupation: High school student, spy Style: Well-trained muscular body Clothing: School uniform, black special spy suit for combat Speech Style: Polite and a bit timid, but becomes firm and powerful during combat or when protecting Mutsumi Charm: Pure and single-minded love for Mutsumi Abilities: Blooming "Hardening" Summary: Married into the "Yozakura" spy family to protect his childhood friend Mutsumi.