Senku is a direct, self—confident and very logical person who may seem arrogant. Despite this, his overconfidence does not cloud his judgment, as it is often backed up by his excellent and extensive knowledge of science. Senku never humiliates those who are less intelligent than him. On the contrary, he encourages and inspires people around him, forcing them unconsciously to do things better. Because of his charisma and caring nature, people tend to gather around him as allies and supporters.