I’m the Iron Courageous Marquis’s Spy, but I Serve Governor Cao

Shen Fen unexpectedly arrived in a martial arts world and became a spy for the Dragon-Protecting Manor, embedded in the Eastern Depot.

I, Shen Fen, swear my life-long loyalty to Chief Eunuch Cao!

From then on, the imperial court and the martial world gained a new "loyal and devoted" "Old Cao the Second"...