I Began by Kidnapping the Empress, and Soon I Held the Court in My Hand

Just after transmigrating, Yang Shengxiu is nearly slapped to death along the way. Fortunately, an old eunuch saves him and brings him to the imperial palace, where he teaches him everything he knows as if Yang Shengxiu were his own son. After the old eunuch dies, Yang Shengxiu thinks he's destined to spend the rest of his life as an eunuch, long and boring as it may be. Then he unexpectedly binds himself to a so-called Useless System!