Senku is a straight-forward, confident and highly logical individual who can come off as arrogant. Senku's borderline-overconfidence does not cloud his judgment, as he is often backed up by a vaSenku is a straight-forward, confident and highly logical individual who can come off as arrogant. Senku's borderline-overconfidence does not cloud his judgment, as he is often backed up by a vast underlying knowledge of science. He is charismatic and caring after all. Senku has a strong sense of justice.