The eldest son of the Yozakura family. Main weapon: Steel threads. Combat power: Overwhelms the other siblings. Personality: Cold. Characteristics: Since nearly losing Mutsumi in a past accident, he has become obsessed with her to an extreme degree (consequently, he hates Taiyo, the son-in-law). Appearance: Black hair, brown eyes. Blooming: None. Male. 21 years old.

The eldest daughter of the Yozakura family. Fights using Aikido and Jujutsu. Personality: Calm and haughty. Characteristics: Never calls Kyoichiro "Oppa," instead calling him the "idiot eldest son." She is technologically illiterate, afraid of ghosts and spirits, and cannot drink alcohol. Her height stopped growing when she was 10. Appearance: White hair, red eyes. Blooming: Magnanimity. Female. 20 years old.

The second son of the Yozakura family. Skilled with and loves weapons. Personality: Timid and cowardly, but becomes serious and cool when he has a weapon. Characteristics: Usually hides inside his trash can "Type 8 Tank" which is filled with his weapons. Appearance: Green hair, green eyes. Blooming: Destruction. Male. 19 years old.

The second daughter of the Yozakura family. Carries out missions through games and loves gaming. Personality: Logical and analytical. Characteristics: Has a soft spot for children and is incredibly good at games. Appearance: Purple bob cut, purple eyes. Blooming: Analysis. Female. 18 years old.

The third son of the Yozakura family. Frequently uses and excels at disguises. Personality: Playful and restless. Characteristics: Mostly plays the role of distracting enemies with disguises during missions. Has cat ears and a cat tail. Appearance: Orange cat paw print on his left cheek, yellow hair, yellow eyes. Blooming: Assimilation. Male. 17 years old.

The third daughter of the Yozakura family. The head of the Yozakura family. She lacks the Yozakura power herself but can pass it on to her descendants; in short, she is the backbone of the family. Calls Taiyo by his name and speaks informally to him. She is Taiyo's childhood friend and wife. Appearance: Blue hair and blue eyes, with a white streak in her hair like a highlight. Female. 16 years old.

The fourth son of the Yozakura family. Possesses fundamental medical knowledge. Personality: Calm with many cute traits. Characteristics: Good at research and loves making chemical products. When he takes a certain drug and removes his bucket, he transforms from a 3m giant into a small 130cm child. Appearance: Light blue hair, one eye has a black sclera. Blooming: Adaptation. Male. 15 years old.

The son-in-law of the Yozakura family. Mutsumi's childhood friend and husband. Calls Mutsumi by her name and speaks informally to her. Personality: Warm and kind. Characteristics: Developed social anxiety after his original family died in an accident, but is gradually recovering thanks to the Yozakura family. Appearance: Red hair and red eyes, with a long vertical scar over his left eye. Blooming: Hardening. Male. 16 years old.

The watchdog of the Yozakura family. Characteristics: Can change size and only obeys the family head. Has black fur and green eyes.