I'm not sure if anyone has asked this yet, but what are your thoughts on the relationships among Frederica Bernkastel, Bernkastel and Rika? Do you believe they are all separate entities?
[I think they all were at one point. Rika came first, of course, but as the time lop started, she had to be protected. Since she wouldn’t be able to handle all of the memories of being brutally murdered every time, so Frederica Bernkastel was created as an overseer. An archive, perhaps. Either way, she is the physical manifestation of all the Rikas that failed to escape the time loop. All of her cynicism, detachment, and bitterness comes from.
Later, when the game of Higurashi was won and the Logic Error was fixed, there was no need for Frederica to exist. Then when Saikoroshi-hen happened, Rika acknowledged that she had no more reason to keep Frederica, so she ‘let her go’. This translates to Frederica being set free from the Fragments of Hinamizawa, and then she was granted the title of the Witch of Miracles, and the rank of Voyager, and became Bernkastel.
Basically, Frederica and Bernkastel are the same entity, while Rika is the Piece that they used to be a part of/inhabit.]