The anecdote of the small cult leader of the blood demon is that according to the will of his teacher, the blood demon, he exterminated the Nangong family. Due to the betrayal of the blood demon, he hears a shocking story before his death. “Now you are the only male palace left in the world.” The anecdote is that he was a child he lost a long time ago in the Namgung family. He learns that he was raised for the manipulation of evil blood demons. The anecdote of returning from a grieving death to the days of being thirteen years old, or rather, the story of Namgung, realizes that the opportunity to change the future has come. He takes steps to prevent the destruction of the southern palace. Will Seol-hwa be able to prevent the family’s destruction from the blood demon and succeed in revenge?