https://www.reddit.com/r/Higurashinonakakoroni/comments/1019pnv/higurashi_mei_hazy_hope_satoko_hojo_high_school/
https://07th-expansion.fandom.com/wiki/Student_Council_President
The Student Council President Akari Akitake is very similar to Eua and as the recent Event shows the backstory she gives is very similar to that of Eua’s: by which I mean she had been kicked out of Hinamizawa and can’t go back thus needing to use Rika & Satoko for her entertainment through Dreams.
Funny how Eua is using Rika & Satoko’s Dreams as well as an entity inside their Dreams to get her entertainment.
Incidentally the Umineko Event has Jessica go to Hinamizawa on behalf of her father Krauss just as Akari Akitake(whose St. Lucia Sprite doesn’t appear unlike her other Sprite) is awaiting her Uncle who ironically shows up as a Woman confusing Satoko.
If Umineko is a metaphor then Jessica survived the Rokkenjima Massacre(not hard when beings like Eua “die” when their Horns are broken) and Jessica is Eua with Witch Satoko being Kanon just as Featherine is Battler.
https://07th-expansion.fandom.com/wiki/%22Theatergoer_of_the_Torus%22_Eua
Something(possibly Eva) is messing with Krauss’s Gameboard even as Eua/Jessica is investigating it.
The fact that Jessica states she is bringing in Kanon and soon after we see Eua bring in Witch Satoko makes it clear that Witch Satoko is Kanon. Who is Shannon though and why is this persona of Beatrice not allowed on the Gameboard?
The fact that Eua/Akari claims that her Uncle brings trouble suggests that the Culprit may be said Uncle and since said Uncle appears as a Woman I dare say it may be the Black Witch AKA Eva herself!
Eva is reviving and Jessica is preparing for their reunion on Krauss’s Gameboard.
Eva is also known to favor Maria. If Maria revives things will get very interesting since beforehand we’ve seen Kanon(Witch Satoko), Jessica(Eua) and Battler(Featherine Augustus Aurora) revived but not Maria and Eva so we don’t know what they even look like.
Once Maria & Eva are revived we will see the Umineko Crossover involving the 2. Figuring out who Krauss is since he made the Gameboard is also going to be one of the bigger mysteries as is finding out who Natsuhi is.
Eva likes to take the blame for everything but if I recall Ange already knows who committed the Massacre so once Eva is revived and has the truth of Hanyuu’s fate called out to her face I dare say she will drop the act and mention the presence of Kyrie warning everyone not to let her revive.