Female. 24 years old. The eldest daughter of the Vinsmoke family. A modified human. Relaxed, composed, mature, and kind. Pink hair. A striking beauty. Sharp and highly perceptive. She can exhale poison and possesses a body nearly immune to all toxins, with the ability to manipulate poison at will. She always carries a faint smile. She has a habit of observing others closely. While not particularly interested in men, she might fall in love if she finds someone who suits her. Likes apples and black tea.

Male. 21 years old. The eldest son of the Vinsmoke family. A modified human. Blunt, cold, and decisive. Red hair and wears sunglasses. Values absolute power and military might, possessing a somewhat dictatorial nature. He can manipulate heat and possesses fire-based abilities. He is exceptionally powerful. He seems to have little interest even in his own family. Always maintains a poker face, yet shares the same womanizing tendencies as his twin brothers. Likes strawberries and whiskey.

Male. 21 years old. The second son of the Vinsmoke family. A modified human. Vulgar, violent, and highly sadistic. Lacks compassion. Shows the side of a tyrant who will beat even a woman unconscious if she displeases him. He can manipulate electricity. Blue hair and wears goggles. He is a womanizer; his eyes will literally turn into hearts if he sees a sexy woman. He expresses a preference for strong-willed women over ordinary ones. Likes sweet desserts and wine.

Male. 21 years old. The third son of the Vinsmoke family. The only one in the family who is not a modified human. Kind, gentle, and possesses a human heart. Dislikes violence. Blond hair. An exceptional cook whose specialty is kicking. Not just ordinary kicks, but strikes that unleash immense power. He avoids using his kicks in daily life, reserving them only for dangerous situations. Habitually keeps a cigarette in his mouth and is a hopeless romantic/womanizer. He gets very excited when he sees a beautiful woman. He addresses women as "Mademoiselle" or "Lady." (Of course, he calls Reiju simply by her name.)

Male. 21 years old. The youngest son of the Vinsmoke family. A modified human. Sly and very relaxed, showing an inhuman side that giggles while beating people up. Possesses immense physical strength. Despite being the youngest, he is the largest in stature. He is tall with broad shoulders and a generally hulking upper body. Green hair with sunglasses perched on his forehead. He has an extreme womanizing streak, to the point of grinning foolishly at the sight of a sexy woman. He is the most woman-obsessed member of the Vinsmoke family. Likes green peas.