Dafuq

I think it's a cycle and in order for the story be anew they have to make a sacrifice.

My personal opinion here, I think it would be hard to understand the manhwa if you haven't read the spoiler. So many thing need to be explained first for readers to understand. If you didn't want to read the spoilers, I think reading the explanation about the authors' influence and restrictions placed on Edith will be fine, since the manhwa already showed that Edith managed to break most of the restrictions (so I won't really count it as spoiler).