I'm not really good with creative writing but here's mine.
There was once a dragon named Gangamamer that lived in the land of Visnovella. He ruled the country and protected its citizens and land. They lived in content knowing the dragon was there and spent their days in happiness, with worry being the last thing on their minds.
This could not last forever of course, and one day a neighboring country invaded during nightfall. As their military might far exceeded that of Visnovella's, there was not much of a fight as the armies marched on the capital, Nuwafovel. It was up to Gangamamer to stop them since nobody else could.
Gangamamer was swift in his attack and he engaged the enemies head-on. Even though he was a great dragon, it was difficult to overcome the thousands he had to face alone. He never gave up, though because he didn't want to fail the townspeople relying on him.
After a battle that lasted several hours, the invading army retreated and Gangamamer returned home, albeit not unscathed. The townspeople praised him for his efforts and he was content with knowing the country was safe.