In an era when heroes flocked to defeat others and conquer the world, one brave warrior - Yeopo - goes back in time due to a moment of mistake. As he is on the verge of death he thinks, Give me one more chance, and I'll conquer the world! When he opens his eyes, Yeopo is back in his old feisty 20s. Yeopo traveled back in time. His turbulent spirit unfolds as he once again sets to conquer the world!