Zhuo Yifan, once known as the powerful Magic Emperor—or Demon Emperor—possessed the legendary Book of the Nine Secrets. Feared and targeted by top experts, he was ultimately betrayed and killed by his own disciples. However, his soul is reborn in the body of Zhuo Fan, a mere servant boy of a declining noble family. Bound by lingering demonic magic, he is forced to merge with the boy’s memories, making it impossible to abandon the family and the mistress he serves. Now, with his vast knowledge and past power, can he lead this once-great family back to the pinnacle of the continent?