The BEST one so far!! As others have said before, it feels like the story is finally hitting its stride. It's always been fun, plus I'm already biased since I love the dramas, but the handling always felt a bit wobbly... In this arc it finally feels like everything is coming together, some answers are coming out, Wu Xie is maturing, Iron Triangle is forming, and I'm really enjoying the way all of the characters are interacting now. The author's writing has definitely improved. Also, Lei Xu should definitely lean more into scaring us and less into disgusting bugs, because I loved everything about that whole thing in the basement! The atmosphere had me gripped, which I didn't expect since I was already prepared because I watched Ultimate Note.
Side note, Ultimate Note really outdid itself with book accuracy, I'm impressed! They things the drama added are great (like, why sit on introducing Hua so long? or how it showed us Xiao Ge's side of things in the devil city [impossible in the books since it's from Wu Xie's POV]), and the important stuff is untouched.
Bless the fan-translation, because I would've missed so much of the story if I relied on the official one (I'm going to keep repeating this until I reach the end: WHY DID THEY CUT OUT INFORMATION? PARAGRAPHS? INTERACTIONS? WE NEED THOSE, STOP IT!).