I like her but it would really tear me up if this future is realized and Yuuna passes on just like that one manga I've read. (the one where the main girl is the MC's drawing come to life)
This one was really dark. My heart went out to her on this one. Especially her sacrificing her future happiness for the sake of the ones she cares for. I wonder how this will affect her even if she doesn't remember, perhaps one day she will and it hurt her deeply over and over. (Possibly might be the reason why her mind goes back to the past to that night over and over randomly)
I am also curious how Yuuna will take knowing all this. Especially finding out that her friend was trapped there for eleven years of her life and how she gave up her happy ending for their sake.
These two last chapters have been brutal. Poor Chisaki.
On the other hand, I hope they show how that Yoinozaka was defeated. He was a very strong enemy; being beaten off-screen like that sounds almost like a joke.