Wouldn't be surprised if the author actually went with the original ending...would also ruin his career as no one will read anything he makes form now on 😂😂😂😂
If he did, the next couple of chapters would be the most painful NTR "prank" that a girl could pull on a boy. It would be bad enough to elicit an FU and never speaking to her again, no matter how much you previously liked her.
See where the skin tone changes on Nagatoro's arm? That's where Nagatoro's left hand is coming through a dimensional portal to hold Senpai's left hand.
This is actually an error that I wouldn't expect Nanashi to make considering his exceptional skill and drawing the human form (especially females (especially being NTRed)).
If he did, the next couple of chapters would be the most painful NTR "prank" that a girl could pull on a boy. It would be bad enough to elicit an FU and never speaking to her again, no matter how much you previously liked her.