Kami no Hidarite Akuma no Migite (Left Hand of God, Right Hand of the Devil) is a collection of horror stories centered around a boy named Sou who is able to foresee supernatural events in his dreams. But as with the "imagination" of kids, Sou's older sister and many others who get entangled into sinister forces never believe in what he tells them. Until they prove to be true...
The stories are all collectively in the same world; Sou has to deal with many supernatural entities throughout their duration, but each tale is distinguishable and different, offering its own unique display of horrific scenes and wretched dismemberment. That doesn't mean all of them retain the same amount of quality, though, because a few stories do drag to a degree, and not all of them are as engaging or shocking as the others. That being said, each tale is fresh, gruesome, and undeniably raw. That's more than enough for capturing the reader's attention and enticing them into reading more.
Sou is an extremely likable protagonist. You'll find yourself cheering him on as he defeats his supernatural foes and tries to protect his sister; I certainly did. His sister is also not the annoying type that needlessly whines and complains as she cares for her brother deeply, just as he cares for her. She never believes in what her brother tells her, but the dialogue from their exchanges is endearing and amusing. Their sibling dynamic fits into the story comfortably. They are young, and what they experience throughout the manga is followed by their believable reactions.
Whilst being fairly old now (1986 to 1989), the artwork in this manga is still crisp and raw, especially when it comes to showing off the grotesque dismemberment of its characters. It's not that it's particularly scary (except for maybe the last story) - I for sure wasn't scared much, though that may be because I'm used to horror manga/movies now - it is just extremely disturbing to sit through. There are a lot of limbs being torn off, multiple panels depicting the puncturing and slitting of various body parts, and plenty of gory splatters. It’s pointless to mention that about a horror manga of all things, but the slaughter is constant and endless.
Even when the stories dive into more dark and sinister territory, there is still a sense of a playfully odd adventure that Sou goes through; like Alice in Alice in Wonderland. Even though it is a horror manga (and horror mangaka's always go all out in their artwork), there is still an adventure. Or, some weird kind of it.
If you're looking for an exciting read that has: 1) Gore, 2) Disturbing Imagery, 3) A likable protagonist, and 4) Short stories that progressively get creepier, then this manga is perfect for you. It is utterly horrifying in the best way possible.