The RPG battle interface and VN interface feel incongruent for Erika-sensei's character. I'd expect that more from Ai-Chan-Sensei, who's into mobile games, Kana, who's into lewd VNs, or Kaede, who's into RPGs. Maybe a Twitch-style interface portraying Sou as a 2.5D idol with a chat made of her various fantasy thoughts would be more appropriate to her character.
I wonder if Hinata's "drag along to the grave" has some deeper meaning, like she's actually willing to take down another girl chasing Sou if she can't have him for herself. Just a thought. Miku's is simple enough, she'd 100% tackle someone if given a reason. Dunno about Kana's, a masochistic tendency? Probably have to check the abnormal version, I can't remember.
If Sou's so powerful that he penetrates even the delusional fantasies of a teacher who was a top 3 guard student, then the only woman that might be able to resist him at this point is probably Akira.
Overall, the inclusion of all three guards and the family is better than the original which was too focused on just Sou and Erika-sensei, and the continuation of Erika-sensei going crazy is better than the revised version which was too safe, it's the best of the three versions.
I wish we got more on her oshi stuff than a wall of text. Also more on how fantasies are supposed to work. I'm pretty sure men are invited into the school to reinforce the fantasies women use to shield themselves, they show the girls "men aren't like your fantasies, they hurt you, so protect yourself with fantasies of men and keep them seperate from real men. Sou is our lens, we only ever see those fantasies outright fail and turn into delusion. I would have liked seeing at least one fantasy that gets strained and reinforced because of Sou, and Erika-sensei would be the perfect candidate for that. Otherwise why the hell did Akira bring Sou to school if he only has a negative effect on the girls abilities to be guard students and the teachers?