At Count D's pet shop, you can acquire any form of animal, from an ordinary canary, to more.. "exotic" creatures. Made to sign a contract before purchase, Count D claims no "responsibility for actions incurred" if the purchaser does not follow its instructions completely, as results can be fatal. Patrons of this shop are able to get the rarest of creatures, but often, their purchases are coupled with demons from their past that won't go away easily.
As a spiritualist, Himiko investigates events of the strange and paranormal. While dealing with an exorcism of a child, she encounters Miyu, a child-like vampire who sends stray Shinma, demons, into the night. The Vampire Princess Miyu OVAs follow Himiko as she tries to track down Miyu and discover her secrets... but does she have other motives?
Both of these OVA's episodes are comprised of self-contained character studies that repeatedly show a general corruption of the human soul. Both have fairly unimpressive animation, but make up for this with clever writing and the natural appeal of the macabre.
Both Pet Shop and Miyu are dark gloomy OVAs in which the themes are somewhat comparable. If you liked one you should sniff up the atmosphere in the other one as well.
Watanuki faces challenges in every area. Spirits chase him, his best friend Doumeki isn't really a friend, and his boss Yuuko seems to have mistaken him for a servant come housewife. When Yuuko requests that both of them join her in accepting a special invitation to a collector's house, he can just hear the trouble coming. Upon arrival, the house proves to be more than a bit unusual, and the other guests are almost scary with their fanatical collecting. But, the worst thing about the situation is the knowledge that for all the weirdness Watanuki can see, it is absolutely certain that the mysteries are way more complicated that he thinks. Depending on Yuuko's arcane knowledge may be the only hope.
Pet Shop of Horrors and the xxxHolic series have very similar atmospheres and aesthetics. I'm recommending the xxxHolic movie in particular, because it is the least comedic of the series, though all other relations are valid.
Pet Shop of Horrors and the XXXHOLiC movie share a general theme that what you want isn't always best for you. With a mixture of dark comedy, the supernatural, and an eccentric shop-keeper, these two anime definitely complement each other.
Legend tells of a lone swordsman who lives in the Demon's Castle, the ruins near the Black Forest. This mysterious stranger only accepts rare books for his services, books from the ancient past. Comedy tells the story of a young girl who desperately wishes for her family and village to be saved from the coming English soldiers' wrath, and is willing to trade a precious book in exchange for the deed. With only her legs beneath her, she runs towards the Black Forest, hoping to get there in time...
The similarity between Kigeki and Pet Shops of Horror resides in their main character : a dark man realises wishes for people, in exchange of a high price, but it is forbidden to talk about the wish being fulfilled, or the one who made it. in both anime, the result of the wish ends in a bloodbath, either because it was the goal of the wish, or because the rules were not respected.
Once upon a time, two brothers passed the happy days of their childhood by studying alchemy, which is governed by the equal transfer principle: an eye for an eye -- you can't get more than you give. But these brothers tried to defy that law, and a horrific accident resulted. Now, the older brother, Edward, is called the Full Metal Alchemist because of his metal limbs, and the younger, Alphonse, is a soul without a body, trapped within the confines of an automaton. Together they search for the power to restore themselves, to find the lives they lost so long ago...
While one series is a very short and the other a long and episodic, they both share a common theme of the imptortance of the choices we make and the resulting consequences of those choices. In short both series seem heavily influenced by Karma.
Maebara Keiichi, an ordinary high-school boy, has transferred to a new school in Hinamizawa, a small rural village. At the outset everything seems peaceful and Keiichi becomes friends with a nice group of schoolgirls with whom he spends many idle summer afternoons. Suddenly violence encroaches upon the blissful peace of the village and Keiichi becomes entangled in an endless cycle of fear and death. The inconsistent, but inevitable horrors of Hinamizawa are told and retold becoming an endless and inescapable nightmare of insanity. Will it end even if the mystery of Hinamizawa is solved?
Both Pet Shop of Horrors and Higurashi can be classified as horror anime, which makes this recommendation a little obvious. Both provide the viewer with a different kind of horror. While many horror movies nowadays feature masked serial killers with chainsaws that lurk in the shadows and plenty of blood, these shows differ. They hit you with the type of horror that stems from human nature. Both show us that we, as human beings, create the horror in our lives, which makes both anime equally as frightening and disturbing when you reach the conclusion of each arc.