Rules of the Strange: With the Red Wedding Dress, I'm Already Invincible

It's a bit confusing at the end, is it because there are too few chapters? Isn't Fatty Wang dead? Why is it said at the end that Fatty Wang is dead? I remember that Fatty Wang appeared in the first copy and came out alive. The later ones were a bit short. The author was too rushed, but overall it was still very good. The protagonist was very calm, including Chen Mo who appeared later.