As a fan as the original series, this sequel was not bad.
Story: So the story is the same as the first series, a sinner starts his atonement in hell with his sexy (?) demon supervisor. It's pretty interesting with all new characters, but this sequel is a bit less dramatic than the original.
Art: The art is seriously amazing in my opinion. Disgusting gore, creepy smiles and beautiful girls, it's all so damn perfectly drawn that it's sad the series is so short.
Characters: Nothing very original here, the characters are fitting for the story, so that is good. But the personalities are nothing new.
Enjoyment: I love the story and art so obviously I enjoyed this manga. But the lack of depth from the original, and a fairly open ending made me feel a bit conflicted. It's a nice journey, but you never reached the destination, I guess? Just one more chapter would've made it so much more enjoyable.
Overall it's a good manga, if you liked the original you should definitely give this a read. You might not like it as much, but you will at least like find it good enough.
+ Good Art
+ Stays true to the original
+- Characters are nothing special
- One chapter away from having an actual ending