Sting is a rather calm individual and is usually seen smiling; he rarely ever loses his temper. Sting believes that people who abandon their comrades are scum and does not hesitate to punish them for their acts. Curiously, however, he was angered when Natsu Dragoneel said that fighting for his comrades was his reason for entering the Grand Magic Games. Sting seems to have no qualms about having killed his own foster father, thinking that it is natural for a Dragon Slayer to kill a Dragon.