Sion, a royal knight, was known as the strongest in the empire and the youngest Sword Master.

But the empire fell because of traitors who had the power of demons.

Sion, who fought to protect the empire until the very end, also met his death.

When he opened his eyes, he had gone back to the past.

It was the time when he was just a thug from the backstreets, known as “Mad Dog.”

“Whatever, let’s give it a try.”

He must become a royal knight once again and change the future of the empire that is doomed to fall.

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