It's very old-fashioned and not applicable. Many places where operas are performed are just a small stage, and then the place below is not big enough to accommodate a few guests. So Guan Yu gave many opinions, told craftsmen, and told Chu Fan that Chu Fan accepted some of Guan Yu's ideas.
The Red Beauty Theatre, originally here, has a stage nearly three meters high, because people in front and behind must see the performance clearly on the stage, so a very high stage must be set up.
But it's not used now. As long as the stage is half a meter high, it's enough. Because the hall of Guanyu...