On the one hand, they play a symbolic role, not only as a symbol of role performance, but also as a place for role activities; on the other hand, they are also practical. The role performance can be divided into front and back stage.
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Pre-stage performance refers to people playing a certain role, and post-stage performance refers to preparatory activities before the official performance.The most popular rule is from Wizards’ Dungeons and Dragons (D&D Rule 3.50) game rule series. In addition to the rules, there is also a set of scripts for the game story.