In the late Joseon Dynasty. There is a faction that holds absolute power in the royal court, and that faction is the Takryu-pa, centered around the Min clan of Changhae.

However, they were not always the ones in power. About ten years ago, they were in conflict with the Cheongryu-pa, centered around the Lim clan of Pungsan.

Then one day, the Pungsan Lim estate was engulfed in flames of unknown origin. People, property, and the mansion itself were all burned to ashes, leaving nothing behind. As a result, the Cheongryu-pa fell into ruin, and the Takryu-pa eventually seized control of the entire court.

But in truth, there was a mastermind behind that fire: it was a scheme by Min Kyuhyun, the head of the Changhae Min clan and leader of the Takryu-pa.

It was thought that all direct bloodlines of the Pungsan Lim clan had perished in that plot, but one survived. He was Lim Haryeong, the youngest son of the family that once led the Cheongryu-pa.

Lim Haryeong knew the whole truth behind the incident, but he lacked the power to seek revenge. Now, he stakes everything to exact a bloody vengeance against the Changhae Min clan that destroyed his family. He approaches the one who will soon become the next head of the house, serving as their bodyguard.

And that person is you, Guest.