https://www.reddit.com/r/Higurashinonakakoroni/comments/yzk6xz/higurashi_mei_monster_of_darkness_kazuho/
The whole “Cast yourself away” thing brings a new perspective to everything.
Infact I suspect that the Cast of Umineko are not who we think they are.
The Players playing roles change 3 Episodes into the story first starting with Bernkastel who gives the role of Bernkastel over to Hanyuu while Bernkastel adopts the role of Ange.
Lambdadelta promptly starts threatening Vier Dreissig in her Beatrice persona before forcing her to adopt the role of Lambdadelta who promptly does everything in her power to trap Bernkastel in the Ange persona while Lambdadelta takes on the Beatrice role(just as she once did the Takano Miyo role) gets bored, challenges Battler’s credentials, when Ange is shown to be fired up enough to save Battler the Witch of Certainty lets Battler tear down her Beatrice role before giving him the mission to discover who Beatrice is before leaving the Gameboard.
Getting Erika to solve the mystery in any manner helps Vier Dreissig so she goes along with Erika’s scheme after Hanyuu turns Erika into a Witch.
When Erika loses to Beatrice her master Hanyuu storms away only to be dragged back to Frederica Bernkastel who adopted the role of Featherine Augustus Aurora and insists on having Hanyuu discover the answer to Beatrice’s Catbox.
Hanyuu after that point goes out of her way to shatter Bernkastel/Rika’s attachment to the Ange role while Vier Dreissig playing Lambdadelta does everything she can to reinforce that role while the real Lambdadelta continues to remain AFK.
Higurashi When They Cry Mei is showing what happens when Players are pushed to the point of dropping their roles.
Bernkastel and Lambdadelta Special coming up in Higurashi When They Cry Mei will see Bernkastel/Rika drop the role of Ange(because someone decided to subject her to a nightmare of Kyrie straight up abusing her) and Vier Dreissig drops the role of Amakusa(because she knows that Amakusa would never intervene in protecting her previous host body from Teppei’s abuse).
I dare say Bernkastel will kill Kyrie & Rudolf in the Nightmare taking place in the past and arrange for Eva to get the Gold before the Final Family Conference then when the Massacre happens anyway Eva(who quickly figured out from repeated visits to the Gold Room that someone was packing weaponry for what she assumes was to eliminate the theft of the Gold and thus decided to skip the Final Conference even as her Husband and Son went) remembering the mysterious Cat who gave her the Gold and forewarned her about the threat so that she would stay home goes to adopt Rika who is now a vessel for Bernkastel.
Rika’s not wanting to be separated from Satoko would lead to Eva sending Amakusa to negotiate Teppei putting Satoko up for adoption and when Teppei starts abusing Satoko the Bodyguard casts away the role of Teppei becoming Satoko unleashing her Utsushiro upon Teppei while the Satoko of that Fragment adopts the role of Amakusa and comes across the scene and since the Utsushiro is de-manifested all that Amakusa can decipher is that something inhuman killed Teppei.
End result: Satoko and Rika gets adopted. Rika’s desire for Hanyuu of course causes Kazuho to go looking for Hanyuu only for “Hanyuu” to insist that she can’t leave Hinamizawa. When Kazuho gets indignant “Hanyuu” simply tells her to cast herself away in that case which results in not only Kazuho abandoning the role of Kazuho becoming Hanyuu again but “Hanyuu” abandoning the role of Hanyuu becoming Lambdadelta again.
Ultimately Hanyuu, Bernkastel(in Rika’s Body), Vier Dreissig(in Satoko’s body) and Rika(in the persona of Featherine Augustus Aurora) are all in St. Lucia discussing their situation while Lambdadelta continues her plans with Satoko under the persona of Eua in the Sea of Fragments.
Yes Vier Dreissig is a better Satoko than Satoko and has been playing Satoko in Higurashi When They Cry while Lambdadelta was playing as Takano Miyo.
In Higurashi When They Cry Gou/Sotsu/Meguri the Witch of Certainty Lambdadelta was playing as Eua while Vier Dreissig was staying under the radar as Takano Miyo. Satoko ended up becoming a Witch through sheer looping.