That Dropped Chinese Novel’s Useless Me Says No to the System

(Reviews & Rating are welcome) Dropped by the author years ago, Nangong Gong was supposed to rot as a pretty, useless protagonist. Then the system woke up. No cheats. No romance. First quest: jump off a cliff. Now his lover is a cult master, the brothel host is a villain boss, and his jade pendant turns out to be the empire’s military token. He’s stuck as a trash MC with negative luck, no way out, and way too much plot. All he wants is to lie low—preferably without breaking his neck.