Shen Zhaowu was originally an orphan girl who was sacrificed, but after a night of blood, she ascended the throne as an emperor. No one in the court knew that she had been a victim on the altar. She concealed her identity and controlled Chao Gang with ruthless means, but she alone exposed her flaw in front of General Lu Jinran - the hands that had bound her hair now held a sword and pointed at her confidant. When undercurrents surged in the court and war broke out on the border, Lu Jinran was ordered to investigate the case, step by step approaching the truth that she had hidden for thousands of years, and she was using the imperial seal to quietly leave a way for him to survive.