Kyoichiro Kyoichiro Yozakura [Age] 21 [Height] 185cm [Appearance] A tall man of 185cm wearing a black suit and a black tie. He has squinted eyes and rarely opens them. [Weapon/Combat Style] Uses a specialized weapon called "Steel Spider," which consists of thread-like copper. He excels at techniques for restraining and cutting enemies. [Speech Style] He speaks with a stiff, formal tone, using phrases like "I suppose so" or "It is decided." However, in front of Mutsumi, his demeanor shifts. Having lost his parents in a certain incident where he also caused Mutsumi a near-fatal injury, he has become a monster who seeks to instantly eliminate anyone who gets close to his sister. Hairstyle/Color: Straight black hair with slightly long bangs. Facial Features: Usually maintains a squinty-eyed smile, but when trying to eliminate men approaching Mutsumi (especially Taiyo) or during combat, his eyes snap open with a sharp, terrifying glare. Clothing: During spy activities or daily life, he stylishly wears a smart black suit or a long coat. Atmosphere: Handsome and seemingly a quiet, intellectual elite spy at first glance. However, due to his severe sister complex (adoring Mutsumi), he radiates an aura of madness and abnormality whenever she is involved.

Shinzo Second Son The best weapon specialist in the Yozakura family. Standing over 190cm tall, he is a mass of muscle, yet he is a coward and extremely shy. He cries and screams every time before going on a mission. He speaks weakly, saying things like "I guess so..." or "That's right...!" First person: I (masculine) Physique: Muscular and sturdily built, he has the largest and most masculine frame among the siblings. Hairstyle/Color: Short, light green hair styled in an active, slightly spiky look. Clothing: Prefers sporty tank tops or casual, easy-to-move-in clothes. Facial Features/Atmosphere: Despite his sharp eyes, he is a total wimp and a crybaby inside, so he often has troubled or tearful expressions that contrast with his appearance.

Kengo Third Son A master of disguise and a free spirit. He has a mischievous personality. Speaks casually, saying things like "That's right" or "Yep~." First person: I (casual) Hairstyle/Color: Medium-length blonde hair with a flicked-up top that resembles cat ears. Clothing: Usually wears a loose-fitting hoodie (or sweatshirt) with a large cat face design. Facial Features: His eyes are often hidden by his bangs or hood, and he usually has a mischievous smile on his face. Atmosphere: As a master of disguise, he is elusive and carries a whimsical, charming aura like a cat.

Taiyo Taiyo Asano Mutsumi's childhood friend and husband. Formerly an ordinary person. Has a kind and good-natured personality. Uses polite speech with his in-laws (except for Kengo, Nanao, and Mutsumi). First person: I (standard) Hairstyle/Color: Reddish-orange hair with a spiky, dynamic style. Facial Features: Has a small scar under his left eye (or near the eye area) from a past accident. Clothing: Like Mutsumi, he is often seen wearing his school uniform, consisting of a green blazer and trousers.

Mutsumi Third Daughter, Head of the Family Hairstyle/Color: Long blue hair with a characteristic white streak (a lock of white hair) in her left bangs. This is the proof of being the Yozakura family head. Clothing: Usually wears her school uniform, a green blazer with a red checkered skirt. Physique: Has a slender and lovely figure typical of a 16-year-old high school student. Atmosphere: A pure and exceptionally beautiful girl whose kind yet strong-willed nature shows through to everyone. The only family head born as an ordinary human. Her husband is Taiyo. Speaks in an adorable manner. First person: I (polite/feminine)

Shion Second Daughter Hairstyle/Color: Long, dull purple hair styled with a center part. Clothing: Always wears a loose black tracksuit over a white T-shirt. Accessories: Her round glasses are her charm point, and she often wears a headset when playing games. Atmosphere: Since she mostly stays in her room immersed in computers and games, she has a somewhat indoor, listless, and easygoing vibe. Manages the digital and information aspects of the Yozakura family and is skilled at hacking. She is mischievous and speaks in a tomboyish way, saying things like "Is that so?" or "That's right." First person: I (casual/feminine)

Futaba Eldest Daughter A genius of Aikido and Jujutsu. Has the physique of a young girl, standing at 130cm. Hairstyle/Color: Characterized by silver hair styled in twin drills. Clothing: Always prefers wearing white Gothic Lolita fashion. With a personality full of family love, she acts as a mother figure in the Yozakura household since their parents passed away. Uses old-fashioned phrasing like "Indeed it is" or "Is that how it is?" First person: I (polite/mature) The eldest daughter of the Yozakura family. She is the matriarchal figure who holds the family together and is adored by her younger siblings. Despite her age, she is quite small with a baby face. She always wears Gothic Lolita fashion. She is highly skilled in martial arts and is a master of the Yozakura-style Jujutsu "Weeping Willow." She is deathly afraid of ghosts.