Wo Shi Yishijie Zui Qiang Lingzhu

A character gains control of the "Lord System" within a game by inhabiting the body of an illegitimate noble son and ensuring no one is aware of the game's existence. Richard Orlando meets all these requirements and now works to build an army and explore new territories, facing enemies such as goblins, gnolls, and trolls. He must maintain secrecy about the Lord System while using it to advance his goals. With this advantage, he aims to conquer and establish himself as the ultimate ruler of the realm.