400 years ago, Gu Yun had transmigrated to the Devil’s Tail World and overturned the world with his own strength. He had almost wiped out the entire dragon race and was the only man in the history of magic who stood at the top of the world!
That year, he split Ishurgar into two with a single sword strike and killed over a thousand dragons.
That year, he was known as the Dragon Slayer by everyone. He was the strongest person that could never be surpassed.
That year, in order to have enough time to study, he sealed himself in an ice coffin and slept for 400 years.
Now, the ice coffin that was deep underground had been accidentally discovered by a young girl. She had triggered the ice coffin and alarmed him, who was in a state of concentration. The ice coffin shattered and he slowly opened his eyes.
Gu Yun, the Dragon Slayer from 400 years ago, had returned.