Hmm so the death she saw in the book was one from arc 4 when he was invited to Echidna’s tea party, I forget what deaths had those, might be the great rabbit one?

Yae is here! Only recently read the side story she was introduced in.

In 7 days the thing causing the end of the world will be removed hmm hmm hmm Al what are you up to, what’re you doing to my boy Subaru