The Strongest Summoning System

From the start, I was a prince of the imperial family, but my father died. Yet, as his only son, I didn’t inherit the throne. It was seized by someone with a different surname, and the throne has been taken from me for three years? The protagonist is still guarding the imperial mausoleum. And the previous owner of this body died under very mysterious circumstances.

See how the protagonist, with the help of the System, pulls strings, dominates all sides, and stirs up trouble.

This novel and its characters are entirely fictional. Any similarities are purely coincidental. Do not imitate.