Online Games: Almighty Power Leveling Mechanic

Chu Yun, Xingchen's top level trainer, takes the player panel and turns into an NPC. Before the open beta of traveling back to the stars, choose the mechanic with the highest difficulty. As an NPC, a normal NPC has all the functions for players... Issuing tasks? Favorability adjustment? Teaching skills? Wait, how do I count the number of these ** players? The real world has returned to ten years ago. This novel and its characters are purely fictitious. Any similarity is purely coincidental and should not be imitated.