The protagonists of the story are two reborn noble sons. In their previous life, their country was ruined and their family was destroyed, and they died unjustly. After rebirth, facing the oppression of the tyrant and the old forces, they are weak but have the ambition to overthrow the tyrant's rule and rebuild the country. In the turbulent period when the old and new dynasties alternate, the lack of resources limits their development of power, and the protagonist knows the secrets of the old dynasty and may be hunted down at any time if exposed. At the same time, the protagonist is misunderstood as a traitor and suffers suspicion while dealing with various forces. As the northern cavalry moved south, the situation was critical. They had to gather strength in a short period of time to resist foreign enemies. In the process, there was a crisis of trust between them and the role of the swinger. In the end, the protagonist succeeded in revenge, but paid a heavy price at the expense of his best friend.