Acony They had us in the 1st half, is what I would describe Acony. Starting with a mystery feel, the author drawing a lot of colored Acony made me feel this is gonna be a gothic horror. And yeah it is, at least at the first part. The afterwords also said that the author doesn't know the genre for this manga and should the author go for more comedy. I love comedy. And after hearing many jokes, Acony definitely delivered in the comedy aspect. I also love how volume 1 started with the art style like 'contemporary' to compliment with the mystery feels. And then gradually headed to amore common natural drawing while still retaining the angsty drawing.

Started with a mystery, and then sprinkled with comedy.

(Spoiler for this paragraph)

I love how the author finished the mystery part early on the 3rd volume so it will not end in a "We now have the answer, therefore this manga is over" situation. After the answers for the mystery, we got more happy half of the 3rd volume. More comedy, and then it ended with a farewell.
(Spoiler end)

And of course, nothing beats mystery when it can happen in real life.

Would I recommend you to read Acony?
Definitely, despite some may get meh on the art style, I recommend you to persevere. Enjoy the comedy, and mystery for only 3 volumes.