I hate horror and usually stay away from it because in a lot of western media and in books/comics, horror has become more of shock value either with excessive blood or cheap jump scares which becomes tiring. However having Uzumaki in 2 days, I can tell the the author really knows well how to keep the reader tense and shocked and keeping the horror genre alive.
The story boils down to the concept of the "spiral". This is pretty much an entire manga about it. A town who has been affected by an unknown entity referred to as the "spiral". The entire town starts to change and many things happen to it that leaves the reader shocked but filled with questions as to what this "spiral" is and what it will do next. I remember reading each chapter wondering what will happen in the story using the "spiral" and it never ceased to keep me horrified.
The horror aspect for me was enjoyable(to a non horror reader) because the author used the over exaggerated blood or gore in the manga when it was absolutely necessary and not all the time. The author instead uses mystery and hopelessness in combination with the town and it's people, to create an addicting story that will keep you tense and really unsettled.
I had nightmares when I first finished this and became tense about just thinking about spirals and I think this manga made me not like snails anymore :p.
I would suggest reading this if you're new to the horror genre and I would pick up the deluxe edition which contains all 19 chapters+bonus chapter+something extra from the author.
