In the Ming Dynasty, I became invincible simply by extracting memories!

Transmigrating into the Ming Dynasty's imperial prison, Shen Lian's first scene involves his fellow prisoners being subjected to the excruciating punishment of slow slicing, with his own turn looming in the next cut! He's also accompanied by a goofy roommate who constantly talks about inventing glass and gunpowder. Facing the brutal torture of the Imperial Guards, Shen Lian recites details from top-secret ledgers detailing official corruption. "I am a top-secret agent of the Northern Garrison Command, infiltrated by imperial decree. Anyone who dares to touch me is committing treason!" The entire room is shocked; the tide of events in the prison instantly turns!