What LZ wants to ask is where did the seller get it? This is generally not a secret, but it is useless for ordinary people to know. Generally, the formal ones are taken out from internal channels, or produced by professional players in the studio, or left by official cooperation activities (such as the cooperation and promotion of games and so-and-so Internet cafes). ). But whatever it is, as long as it is formal, it must be something that ordinary players can't get in large quantities. . . I can't brush it out.