Undercover at Blackwood Cliff: My Golden Finger Lies to Me

I transmigrated to Blackwood Cliff as a servant, and the entire cult wants me dead. My golden finger, the ability to read hearts and perceive auras, lets me see everyone's favorability toward me, but I discover that the numbers can lie. The protagonist is a triple agent, has no martial arts skills, and relies on information asymmetry to steal ancient manuals and manipulate people, going from a pawn to a player. Some hate him, some are insincere, and some are passionate. But in this Jin Yong-style martial world, where even people's hearts can be disguised, is one genuine feeling enough? See how the protagonist carves out a life of freedom and fulfillment in this treacherous world.