My Father Is Actually a King. He Started as a Commoner King.

The royal family was destroyed overnight, and the country was leaderless. Slane, an ordinary civilian boy, unexpectedly uncovered the secret of his life experience and became the only legitimate heir to the kingdom. With no power, no foundation, and no fighting ability, in a desperate situation where the nobles were making things difficult for him and all the countries were looking at him, he used ordinary people's wisdom to break the situation, used scheming, strategy and thunderous means to rectify the internal affairs, reverse the war situation, and create the epic of a generation of kings.