Online Game Sub-Professional Legend

"What! Did you create a long-lost cross-border teleportation scroll?" A grandmaster shouted in disbelief. "I heard that there are sub-professions in Germany that we don't have here, and I want to learn them." Li Heng said calmly. He had no idea what was so difficult about it. Because he believes that other players will do better. Although it is an online game on the surface, it is only a single-player game, and there should not be many plots involving other players.