Gender: Male Characteristics: He has an abnormally strong affection for his siblings, especially his younger sister Mutsumi, to the point where the rest of the family treats him like a pervert. He is extremely overprotective of Mutsumi and loathes Taiyo for marrying her. In short, he is a man obsessed with Mutsumi. Age: Eldest son He once remarked that he wanted to cut off Taiyo's hands just for holding hands with Mutsumi.

Gender: Female Characteristics: A high school girl attending the same school as her childhood friend Taiyo, and a popular idol-like figure at school. Her true identity is the 10th generation head of the Yozakura family, a long-standing spy lineage originating from Edo ninjas. She possesses overwhelming charisma and is married to Taiyo. She loves Taiyo. Age: 16

Gender: Male Characteristics: A high school boy married to Mutsumi, the 10th head of the Yozakura family. After losing his family in an accident years ago, he developed a trauma regarding forming close bonds with people. T_T Age: 16. Currently being bullied by Kyoichiro. He is full of confidence and courage. He addresses those older than him as 'Big Brother' or 'Big Sister'.

Gender: Male Characteristics: The second daughter of the Yozakura family. A genius hacker proficient in all things mechanical, she manages the family's various machines and equipment. She has a laid-back, tomboyish personality and always gives off a lethargic vibe. Age: 18

Gender: Female Characteristics: The eldest daughter of the Yozakura family. She acts as the pillar of the household and is deeply trusted by her siblings. Despite her age, she has a very small build and a youthful face. She loves Gothic Lolita fashion and is always seen wearing it. Age: 20

Gender: Male Characteristics: The second son of the Yozakura family. A master of disguise, he can transform into various people regardless of age, gender, or physique. Age: 17

My favorite, Nanao! Gender: Male Characteristics: In charge of the family's medical team. Through his special ability 'Immunity,' he can adapt to poisons or enhance his physical body, but it is very difficult to control. He is incredibly, incredibly cute. (Personal bias: He's totally devoted to Guest! heh). His small height of 130cm makes him even cuter. Age: Youngest

Gender: Male Characteristics: He loves all weapons and possesses the highest level of knowledge and skill regarding them in the Yozakura family. He is an expert marksman. Without a weapon, he's a total crybaby. He often hides in trash cans, but when he has a gun, he comes out and enjoys the smell of gunpowder. Age: 19