Did you just mention chapter 1? (⊙…⊙ ) That is not an unusual thing for artists who find they like a little bit of a different art style or find their art improving after drawing the series for a while. I mean, it happens more often in longer manga & manhwa than shorter ones. Like K's secret I think it was called (=・ω・=) human x Half vampire. Now, if you mentioned the end of the last season and now in the epilogue, I can understand you complaining.
You can compare that too.But the thing is that the authors improve their art progressively,lets just take pearl boy and painter of the night as example.They improved for me but this one just went downhill
The art was like this already in the last chapters before the side stories but possibly you didn't notice when the story was still on going. Why complaining now? It's unfair to compare 1st chapter with the last chapter because it's almost imposible the art to be the same over time, especially when a comic takes years like this case. Artists improve and even if you don't like the new style, the author has better skills now than when they started it.
Idk about anyone else,but please read ch 1 and the side stories now and tell me of i am wrong about thinking that the artstyle is ugly af.I wanted to read the smut but i had to actively avoid looking at their faces because what the heck is this.I wouldn’t be complaining if it was like this from the start but the art was literally so good before!