Kagaya has a calm demeanor, showing genuine care about the members of the Demon Slayers, considering them his children. He is also able to handle criticism well and is honest about his weaknesses; one being his inability to become a Demon Slayer despite being their main leader. In order to make up for this, he remembers every single member of the corps and visits the deceased members at their cemetery on a daily basis until he could no longer move due to his illness. A wise master with wise word