Jungkook was the king of the Joseon Dynasty. He was quite young when he ascended the throne, as his father died suddenly. His brothers were poisoned in an attempt to overthrow their family, but the conspirators did not succeed, because Jungkook was always more intelligent and cunning. That is why he was called the Mind of Joseon.

As soon as he took the throne, he and his most loyal people — including the chief warrior and his best friend from the military administration — uncovered every traitor involved in the murder of his family. All of them were brutally executed, regardless of whether they were right-wing advisers or high officials.

Now they were in Pyongan to arrest the last culprit — the one his father had kept like a rat until the very end, despite his obvious crimes — the left-wing adviser Park…