A Professional Antagonist to Wicked Eunuchs

System: The organization has assigned you a mission. Yan Fushi: Go on. System: It's simple. Help Third Prince Yu Che ascend the throne. Yan Fushi: Sure. System: There's a little nuisance named Tan Xun. Keep an eye on him. Yan Fushi: OK. (Makes an OK sign.) But when he gets there, he finds out... System, you unreliable thing. You call this powerful eunuch who controls the entire court a little nuisance? And with all these princes and princesses, why is the one I'm helping the only one with a grudge against this so-called nuisance? Most importantly, why was my first encounter with the nuisance me hanging from a rack? According to the organization's records, Tan Xun was born a slave in the eunuch household. In just four years, he rose to become the most powerful eunuch of his age. He was stunningly beautiful, shrewd, ruthless, and patient. Difficulty rating: five stars. This man, officially certified as a nightmare to deal with, had spent nearly his entire life rising through the ranks with enviable ease, except for his early years of hardship. No one could have imagined that Yan Fushi, with the tenacity to be tortured a thousand times and still cling to half a life while digging his way toward his goal, would eventually drag this dazzling man from his lofty position. [I, Tan Xun, swore long ago that in this life, I would never give my heart to a love that leads people astray.] Who could have known... that one day he would dig his own grave? [Absurd.] P.S. The dynasty is fictional, and both men and women may hold office. Content warning: The male lead is a eunuch. Theme: Striving to build a career