The last chapter should have ended at happy birthday. It would not have made much sense but it would have fit the frustrating flow of the last few chapters. I read the official English translation so I know Tappytoon did their best with what they had to work with. The story was not great before the last few chapters but you could tell the author was just tired of writing the story. It did not have a chopped off “this got axed” ending. It just skipped around much more than the rest of the manhwa. Early chapters took 5 chapters to explain what the endtook half a chapter to explain. Pacing in this was either too slow or too fast. It rarely hit a comfortable stride.