A possible concise summary is:
The speaker is in a dollhouse where the GMI is casting girls to be Rebecca's best friend. The speaker and her friends are in disguise as GMI agents and butlers to spy on the girls and rescue their dogs. They find out that the girls have barcodes, signed contracts, and don't remember their pasts. They also hear that the GMI is coming to choose one girl and deliver Rebecca's dogs. They try to find a way to escape before the GMI comes back.
Some possible facts extracted from the text are:
1. The text is a transcript of a video where the speaker and their friends are in a dollhouse and pretend to be part of the GMI to find their dogs.
2. The speaker and their friends are wearing disguises and spy on the other girls who are competing to be Rebecca's best friend.
3. The speaker and their friends encounter Mr. X and the Quadrant, who are looking for RZ Twin.
4. The speaker and their friends learn that there is a key in the back room hanging from the candles that can unlock the door to escape.
5. The speaker and their friends hear something about a new mask for the gamemaster.