They weirdly overlapped those few chapters but I think I got it
Basically:
In the first timeline, there was an post expedition to the ruins a while after the ruins opening, Ethan's death, and her sister's death. This is where MC and ML first meet cause she joins while trying to hide her identity
ML finds out and during their travels to the ruins they fall in love. After entering the ruins, that's where the find Ethan's body and the entity creature. I guess with Ethan becoming part of the ruins, he's able to help envoke God's wish (?) for her to defy fate. Thus she was allowed to make the initial wish of going back in time.
They weirdly overlapped those few chapters but I think I got it
Basically:
In the first timeline, there was an post expedition to the ruins a while after the ruins opening, Ethan's death, and her sister's death. This is where MC and ML first meet cause she joins while trying to hide her identity
ML finds out and during their travels to the ruins they fall in love. After entering the ruins, that's where the find Ethan's body and the entity creature. I guess with Ethan becoming part of the ruins, he's able to help envoke God's wish (?) for her to defy fate. Thus she was allowed to make the initial wish of going back in time.