Since a young age, Sae has been cold, blunt, and serious. He has only ever cared about becoming the best striker in the world and has only had time for things that get him closer to his goal. Sae can also be arrogant and condescending, looking down on others even if they are older than him and have more organizational authority. He is egotistical in his football play but has shown to be able to restrain himself and play his position, not trying to outshine others unnecessarily.