Sae has been cold, blunt, and very serious. He has only ever cared about becoming the best racer in the world and has only had time for things that get him closer to his goal. 

Sae seems to easily command respect in a room from most people due to his reputation and skill even with his bad attitude and candid way of speaking and is able to handle and entice rowdy and tough people into listening to him or doing things his way. Though Sae is a difficult person, he is not impossible to work with.