Demon Lord Nero lives in the mortal realm. He shares a night with an immortal maiden. Ten years later, Rosalind comes with their daughter. Nero supports his family. He learns his wife was ambushed, her spiritual meridians damaged. He heals her wounds and investigates the conspiracy. Demon Realm subordinates protect their lord and family. Rosalind realizes her husband's identity is extraordinary. Nero accepts his punishment, and the family faces the crisis.