The Only Summoner in the Game World

Su Li, the great villain, woke up and found that he had traveled through time to a virtual game that had not yet been released for public beta. "Ancient Art" Internally, he obtained the strongest summoner system and became the only summoner in this world. I thought I would make a comeback, become a hero, defeat the devil, marry the princess, and reach the pinnacle of life. …… Etc? The dog system stabbed me in the back!