Senku is the leader of the Kingdom of Science. Senku is a slim and physically weak young man of average height with white, brush-like hair that spikes up, two locks of hair that drape over his face, and sharp red eyes. Senku is a straight-forward, confident and highly logical individual who can come off as arrogant. Senku never belittles those who are less knowledgeable than him. Rather, he encourages and inspires everyone around him to do better. He can be very caring and kind.