The Shadow Guard Only Wants to Protect His Wife Until She Becomes Empress

Shen Du, a palace guard stationed at the Cold Palace, awakens the Shadow Guard System.

Protecting a young palace maid lets him exchange points for divine martial arts and take revenge on the dynasty that destroyed his family.

He once saw her as a tool, but she became the only light in his dark life.

When the System issues its final mission, he faces a choice: overthrow the world, or protect one person?