This Manga is one of the best I've read in ages.
The concept is a simple one on the surface, a girl sensitive to spirits opted to ignore them so as not to attract their attention.
The situations she's put in... that girl has nerves of steel. It's impossible not to feel for her.
Like all good tales though the more you read the more complex and layered the story becomes. One thing the manga doesn't do though is hold your hand, quite a few locations have had their names slightly changed but in all other aspect are a reference to a real location in japan rumored to be haunted. There are also some details in the artwork that will give you a hint regarding the specifics of a spirit, again the manga doesn't tell you this, you'd only catch it if you already knew and if you didn't then the story works anyway.
One example from the first few chapters is this, Mieruko finds a stray and is looking for someone to adopt it. She refuses a few people until she comes across a person haunted by cats that have their tails split down the middle.
In Japanese folklore a cat that's lived a good life and died of old age will turn into that specific yokai so as to be with it's beloved owner.
The manga takes aspects of yokai lore, combines it with very creative visuals to create very unique monstrosities with A LOT of attention to detail.
The artwork = 10/10
Characters = 9.5/10
Plot = 9/10
A very unique take on the horror genre making it extra special.