[Witch of Uncertainty]

So, after replaying the second twilight in EP1, I was reminded that in the first 4 episodes, only what Battler sees is valid.
So, I made a theory about how the second twilight can have been done..

Spoiler for Second Twilgiht (EP1):

This was never a closed room. The chain was unlocked before Battler saw it, so theoretically, the culprit could have left the room opened, and when Genjia and Kanon arrived, they entered the room, locked it with the chain and then broke it, or the culprit had already broken the chain, and the servents (Genji, Kanon and Kumasawa) merely acted like it was locked and that they opened it. By timing it, the servants made it seem like it had just been opened when the other guests arrived.

I have not found any conflicting red, but if anyone has anything that contradicts this theory, please tell. And I apologize if this is "widely known" by now.