As a WMG subpage, all spoilers are unmarked as per policy. You Have Been Warned.
- However, in Episode 6, it's revealed that if the egg hunter simply protects the captured maiden without defeating her wonder killer, she will regenerate in her egg. It's possible that Kurumi had this knowledge from another egg hunter's failed attempt.
Also, there is significant evidence for the Dream World being all in the individual characters' heads and not created by Acca and Ura-Acca. Firstly, every character spawns at the same location. Ai always spawns at the school. Neiru always spawns on the bridge. Rika always spawns next to the lighthouse. Secondly, the suicide victims and wonder killers always follow a specific theme for each character. Ai always had school related suicide victims and wonder killers. Momoe always had transgender related suicide victims and wonder killers. Thirdly, the injuries in the Dream World don’t match up with the injuries in the real world. Ai gets multiple life threatening blows to the head and stomach, multiple fatal falls, and significant blood loss in the Dream World. Somehow, Ai only has very minor bruises and cuts in the real world. Lastly, the characters always wear their favourite outfit in the Dream World regardless of their outfit in the real world. In multiple episodes, Ai goes to sleep without wearing her favourite yellow hoodie and spawns in the Dream World with her yellow hoodie.