perhaps it could start as if the Narrator is trying to get an idea about the character (like class/race/abilities) or roleplay (like the genre, setting, style) and different Iwaku members are presenting ideas (aka the choices). They each have their own door to go through. After they've all spoken, you're asked to choose your path. So at the start of the game it's like a nexus hub of all the branching paths (when it gets to the actual script/game that could be a big room you start in) though perhaps when you go down one path you've still got all the different members trying to direct their attention onto their path still.