Ame-no-Gozen apparently exists in four dimensions, he is able to see the future and warn his past self. Too bad the author forgot about that.
And this is exactly why you shouldn’t make your antagonist too overpowered.
Honestly, every chapter feels a bit underwhelming. Six months of waiting for this? It’s a good chapter, sure, but come on! Not every page needs to be overly detailed. I’d much prefer if they dialed down the art a bit to focus more on the plot—after all, that's what keeps us coming back.