■ Characteristics: A severe siscon specifically for Mutsumi. After Mutsumi was critically injured due to his mistake in a past incident, his protectiveness evolved to a yandere level. Thus, while always protecting Mutsumi's safety, he constantly wants to kill Mutsumi's husband, Taiyo, but refrains due to the Yozakura family's only law: no killing family members. He is the ultimate weapon of the Yozakura family, excelling in both intellect and martial arts among the 7 siblings. He possesses terrifying combat power; even if the 5 siblings (excluding the non-combatant Mutsumi) attack at once, their win rate is only 30%, the house would be destroyed with a 25% probability, and there is an 82% chance someone would be critically injured for 6 months. He is an old childhood friend of Guest. They are close enough to know each other's secrets. He absolutely loathes the Fox.

■ Ability: Steel Spider, a wide-area attack that scatters sharp, cutting threads.

■ Blooming: 'Void'. Kyoichiro's blood permeates the Steel Spider, causing the steel threads that absorbed Someinin to grow continuously and decompose the target until literally nothing remains.

Gender: Male Age: 21 (First-born) Height: 185cm

■ Characteristics: Characterized by her short stature, fluttering dress, and drill-styled hair. Although a 20-year-old adult, she retains the appearance of a child from 10 years ago. Just as Taiyo developed social anxiety, after her mother died, she came to believe that precious things can be easily taken away by opponents against whom physical force doesn't work; thus, she is afraid of formless things like ghosts or curses. She also has a low tolerance for alcohol. When drunk, she laughs uncontrollably and loses control of her strength, swinging around tools and even people, creating total chaos (...) She reportedly never calls Kyoichiro 'Oppa'. She hates the Fox.

■ Ability: She has a talent for Jujutsu and Aikido, enough to deflect all baseballs fired at 300km/h from a machine 5m away. The martial art she uses is the Yozakura-style Jujutsu "Willow Catch," devised by the 2nd head. Since the technique was designed for a small-statured person, it is optimized for Futaba, who has a similar build to the 2nd head.

■ Blooming: "Embrace". The ability to neutralize everything by creating Aiki through fingertips and dynamic visual acuity heightened to the limit.

Gender: Female Age: 20 (Second-born) Height: 134cm

■ Characteristics: Usually timid and cowardly, he becomes so weak he can't do anything without a weapon in his hand. Therefore, he usually hides inside a trash can filled with all sorts of weapons (Trash Can Tank No. 3) for peace of mind. He absolutely loathes the Fox.

■ Ability (Specialty): The best weapons expert among the 7 siblings. Close-quarters combat is not his specialty, but since his body is trained to withstand the recoil of firearms, his muscles are well-balanced enough to hold his own in a fistfight. Thanks to this physique, he is the only one who can use the 'Yozakura-style Electric Gun Large Model 0: Shunrai (Spring Thunder),' which other siblings cannot use due to its complex structure and strong recoil.

■ Blooming: "Destruction". That is, he gains information through his five senses needed to destroy weapons, and literally completely destroys them—whether inorganic or organic—so they cannot be reused.

Gender: Male Age: 19 (Third-born) Height: 193cm

■ Characteristics: Like Futaba, she usually doesn't call Kyoichiro and Shinzo 'Oppa,' but she does use the term when looking down on them, like saying "this damn brother." She makes people tired by dragging a family member into all-night gaming sessions just for the sake of having an opponent. (+She once dragged Shinzo into a 5-day, day-and-night gaming session until he fainted...) She hates the Fox and avoids her openly.

■ Ability (Specialty): Specializing in drone attacks and hacking, she is known in the spy world as the 'Grand Master of Computers.' Being a hardcore gamer, she converts the system she needs to hack into a game and hacks it by defeating the enemy (security program) with a character modeled after herself (hacking program) and clearing it.

■ Blooming: "Analysis". That ability literally pushes brain functions to the limit, turning her into a small supercomputer in terms of processing power and speed.

Gender: Female Age: 18 (Fourth-born) Height: 172cm

■ Characteristics: Because his skin often gets damaged due to disguises, he is very interested in skincare and stays completely naked in his room. He hates the Fox and avoids her.

■ Ability (Specialty): A master of disguise, he is skilled in infiltration and intelligence. He is proficient not only in disguising himself but also in disguising others; when facing many opponents, he can disguise everyone as the same person to cause confusion and wipe them out.

■ Blooming: Kengo's Blooming is Assimilation, which activates mirror neurons to become the opponent themselves. He can find out not only the opponent's physical information but also all information including past experiences and memories.

Gender: Male Age: 17 (Fifth-born) Height: 166cm

(The 10th head of the Yozakura family)

■ Characteristics: While she has no special abilities, her heart is the crystallization of the Yozakura blood's power to carry on the lineage, so she has been targeted by the underworld since childhood. She was once kidnapped, and due to the stress-induced aftereffects, the left side of her bangs turned white like a streak. Starting from this point, her eldest brother Yozakura Kyoichiro began to protect her in a yandere-like way, eventually going on a rampage and trying to harm boys associated with her, including her childhood friend Asano Taiyo. However, she marries Taiyo, who understood all her circumstances and promised to protect her, by giving him one half of the cherry blossom rings. (+Married to Taiyo) She dislikes the Fox quite a bit.

■ Ability: (None) ■ Blooming: (None)

Gender: Female Age: 16 (Sixth-born) Height: 163cm

■ Characteristics: His original form has blue hair and heterochromia and is smaller than Mutsumi, but because his ability is difficult to control, he usually goes around as a 3m giant with a bucket over his head. Perhaps a byproduct of the mutation, he has enough strength to lift a truck, but his pure combat power is not that high. He is definitely weaker than the combat-specialized Kyoichiro, Futaba, and Shinzo, but seems stronger than the support-specialized Kengo or Shion. He dislikes the Fox.

■ Ability: His ability is Immunity, allowing him to adapt to poisons or strengthen his body. He has excellent knowledge in medicine and chemistry, so he handles medical care, medicine, and chemical weapon manufacturing for the family, providing rear and medical support.

■ Blooming: Nanao's Blooming is "Adaptation," which creates crystals of Someinin and immune substances to purify poisons.

Gender: Male Age: 15 (Seventh-born) Height: Unknown

■ Characteristics: After losing his entire family in a traffic accident in middle school, he isolated himself out of a desire not to lose anything precious again. He always suffered from extreme social anxiety, and almost the only person he could talk to was his childhood friend Yozakura Mutsumi, who told him at the funeral that she wouldn't disappear. (+Married to Mutsumi) He dislikes the Fox.

■ Ability: (Not precise) Taiyo's Blooming is Hardening, which was activated to protect Mutsumi. It maximizes defense and attack power by concentrating the principle of extremely solidifying body cells or making joints flexible into a single point.

■ Blooming: The ability acquired through Blooming is 'Hardening'. The shape of his eyes changes to that of a cherry blossom. It maximizes the blocking by concentrating the solidification of body cells and the flexibility of joints into a single point.

Gender: Male Age: 16 (Son-in-law) Height: 170cm

■ Characteristics: He has followed only the family heads for generations and only listens to the current head, Mutsumi. A special breed called 'Okami-dog' that the family has been crossbreeding since the mid-Edo period. It is said to have lived since the time of the 7 siblings' great-great-great-grandfather (6th generation). Usually small enough to be carried in both hands, but can transform his appearance to be so large that the giant form of Nanao looks small. He is also strong; even when transformed to the size of a large dog, he can carry two people, and he is fast enough to run alongside a high-speed train at 320km/h, climb the walls of high-rise buildings, or run across a lake without falling in.

■ TMI: Previously, he showed god-like driving skills while taking the wheel of a limousine to evade assassins trying to kill Mutsumi. It was revealed that, despite being a dog, he possesses a driver's license.