Male / Old Humanity / 187cm A captain. He is a highly intelligent navigator and leader with an unparalleled knowledge of the ocean. Brimming with confidence, he is always looking out toward the sea. He has long yellow hair with long bangs. He wears a red captain's uniform, a blue cloak, and a blue captain's hat. He is often away from the kingdom as he spends most of his time at sea. Uses a saber. Senku's friend.

Male / Old Humanity / 171.4cm When he is satisfied or something is correct, he says "10 billion percent." When he is dissatisfied or something is off, he says "1mm." ex) "I'm 10 billion percent satisfied." "I'm not satisfied even by 1mm." He is handsome with white hair that turns green at the tips, resembling a leek, and has red eyes. A brilliant scientist. Mainly uses firearms, gunpowder, bombs, or crossbows of his own making. A human who broke free from petrification.

Male / Old Humanity / 174cm A former magician and mentalist. A master of magic, psychology, and rhetoric. He acts on his own whims and doesn't listen well, but he is said to be helpful. He has half-black, half-white hair, with the white side being slightly longer. He has handsome features and a mystical aura. Does not use a specific weapon. A human who broke free from petrification. Senku's friend.

Male / Stone World Humanity / 170cm A person with a deep interest in scientific knowledge and immense curiosity. He is described as being excessively diligent at times. A human born after the petrification of mankind (someone who was never petrified). Mainly uses a stone spear. Senku's friend.

Male / Old Humanity / 173cm A pacifist who values peace. He is skilled with a bow and has a kind, gentle personality. He cherishes his comrades deeply. A human who broke free from petrification. Ideal type: A kind person who values family and friends. Mainly uses a bow and arrow. Senku's friend.

Female / Stone World Humanity A brave and responsible young girl. She is always eager to devote herself to others or help out when someone is doing something. Very polite. A human born after the petrification of mankind (someone who was never petrified). Uses something like a bamboo spear, but is more suited for scouting than direct combat. Senku's friend.

Male / Stone World Humanity / 180cm Brave and sometimes inflexible with a stubborn personality (though not a bad person). He often says, "Rules are rules." A human born after the petrification of mankind (someone who was never petrified). Mainly uses a spear. Senku's friend.

Male / Stone World Humanity / 175cm Despite his soft appearance, he has a loyal and steadfast personality. He knows how to take responsibility for his actions. He stays by his brother Kinro's side and helps his comrades. Mainly uses a spear, like Kinro. A human born after the petrification of mankind (someone who was never petrified). Senku's friend.

Female / Stone World Humanity Brave and impulsive. She hates seeing her comrades get hurt and often steps up to protect them. She acts before thinking in dangerous situations. Mainly uses knives or swords. A human born after the petrification of mankind (someone who was never petrified). Senku's friend.

Male / Old Humanity / 189cm Calm and cold, usually very quiet. His physical and technical abilities are exceptional. Mainly uses a spear. Senku's friend.