Yamamoto, Hideo

Susumu Nakoshi is a middle-aged man who spends his days between a lavish first-class hotel and a park full of homeless people. One day, an eccentric young man approaches Nakoshi in search of subjects willing to partake in trepanation—the procedure of drilling a hole in the skull. 

This mysterious person claims that Nakoshi is the perfect man for the experiment. Initially rejecting the offer, he doubles back on his decision after his car gets towed off. Nakoshi agrees to let Manabu Ito, a 22-year-old medical student, drill a hole in his skull in exchange for 700,000 yen. The procedure bears no results at first, with Nakoshi showing no abnormalities. This normalcy comes to an abrupt end, however, when Nakoshi begins seeing the homunculus in every person. With his perception distorted, how will Nakoshi face these homunculi?

[Written by MAL Rewrite]

Homunculus

ホムンクルス

Hirano, Kouta

For centuries, many secret organizations have taken part in exterminating various types of dangerous monsters. One of them is the England-based Hellsing, run by its cunning leader, Sir Integra Fairbrook Wingates Hellsing. Her greatest hunter, and trump card, is Alucard, an unbeatable vampire genetically modified by her father. Despite him being one of "them," he swore to be her protector and servant.

A new crisis begins and with the help of Seras Victoria, his recently turned vampire partner, Alucard has to uncover the truth behind the mysterious vampire attacks. Not every human is bound to be his ally in this battle, and he will not hesitate to kill anyone who stands in his way.

[Written by MAL Rewrite]

Hellsing

ヘルシング

Inada, Shiho

Ono, Fuyumi

Mai Taniyama's school has an ancient, abandoned, and allegedly cursed building. Whenever it is about to be torn down, a series of unsettling deaths occur and halt the demolition. To prove it is haunted, Mai and her friends try to summon a specter by telling ghost stories. No ghosts appear, but the group encounters Kazuya Shibuya, a 17-year-old transfer student. Though her friends are charmed by Kazuya's attractive looks and great manners, Mai does not trust him.

Following a mishap, Mai discovers Kazuya's real identity as the president of Shibuya Psychic Research, a group hired by the school principal to investigate the building's rumored paranormal activity. As a consequence of her actions, Mai must temporarily help Kazuya if she does not want to pay him damages. Joined by other individuals experienced with the supernatural—former Buddhist monk Houshou Takigawa, self-proclaimed Shinto priestess Ayako Matsusaki, famous medium Masako Hara, and Catholic priest John Brown—Mai and Kazuya must uncover the mystery surrounding the building before any more innocent lives are lost.

[Written by MAL Rewrite]

Ghost Hunt

ゴーストハント

Akino, Matsuri

Beyond the mist-filled alleyways in the concrete crevices of Los Angeles' Chinatown hides a mysterious pet shop, home to many bizarre yet friendly creatures. The store's proprietor is an enigmatic young man who goes by the name of Count D.

Count D welcomes those who feel lonely and wounded through the doors of his shop, claiming to sell "love, dreams, and hope" in the form of the fantastic beasts that lie within. Each creature comes with a special contract accompanied by a set of rules. However, he warns customers that he cannot be held accountable for any consequences of breaking the rules.

Short-tempered detective Leon Orcot traces the source of several crimes back to Count D and what the former considers to be a pet shop of horrors. Determined to find proof that the Count is a criminal, he begins to pay regular visits to the shop.

[Written by MAL Rewrite]

Petshop of Horrors

Pet Shop of Horrors

Petshop of Horrors (ペットショップ オブ ホラーズ)

Maybe

A young woman, by some strange occurrence, was left to die alone in the former building of Seikyou Academy. Mysteriously, there is one person who can see her in ghost form: Teiichi Niiya, a freshman. Now they both seek to find out the reasoning behind her death, and what could have caused it.

(Source: DBR Scanlations)

Tasogare Otome x Amnesia

Dusk Maiden of Amnesia

黄昏乙女×アムネジア

Type-Moon

Nasu, Kinoko

Sasaki, Shonen

Shiki Toono awakens in a hospital to find the walls and people around him covered in black lines. Unable to recall his past memories, Shiki is told that he survived a fatal car accident, which left a fragment lodged into his chest. His attraction to the lines lead him to trace over an object, revealing his ability to destroy it. After realizing only he is able to see these lines, Shiki is given a pair of glasses to mask them, before starting a new life with his relatives.

Eight years later, the death of his father leads Shiki back to the Toono mansion, his childhood home. One day, leaving school due to anxiety, he passes by a mysterious woman. A sudden urge overtakes him, and once again, he uses his ability to trace the lines that cover her. Soon after, he wakes up in the mansion, questioning whether what had transpired was a dream or reality.

Shingetsutan Tsukihime tells a tale enveloped in adventure, romance, and mystery. As Shiki begins to unveil his past, what lingers in the unknown soon comes back to haunt him.

[Written by MAL Rewrite]

Shingetsutan Tsukihime

Lunar Legend Tsukihime

真月譚 月姫

Yuki, Kaori

Deep in the heart of 19th century London, a young nobleman named Cain walks the shadowy cobblestone streets of the aristocratic society into which he was born. Forced to become an earl upon the untimely death of his father, Cain assumes the role of head of the Hargreaves, a noble family with a dark past. With Riff, his faithful manservant, and Mary Weather, his 10-year-old half sister, Cain investigates the mysterious crimes that seem to follow him wherever he goes.

(Source: VIZ Media)

Included one-shot:
Volume 5: Nichiyoubi no Solomon Grundy

God Child

Godchild

ゴッド チャイルド

Itou, Junji

In the town of Kurouzu-cho, Kirie Goshima lives a fairly normal life with her family. As she walks to the train station one day to meet her boyfriend, Shuuichi Saito, she sees his father staring at a snail shell in an alley. Thinking nothing of it, she mentions the incident to Shuuichi, who says that his father has been acting weird lately. Shuuichi reveals his rising desire to leave the town with Kirie, saying that the town is infected with spirals.

But his father's obsession with the shape soon proves deadly, beginning a chain of horrific and unexplainable events that causes the residents of Kurouzu-cho to spiral into madness.

[Written by MAL Rewrite]

Uzumaki

Uzumaki: Spiral into Horror

うずまき

Oku, Hiroya

Lonely high school student Kei Kurono isolates himself out of a growing cynicism toward his fellow man and the cruelty they are capable of enacting. One day, while waiting to take the subway to school, Kei's classmate Masaru Katou leaps onto the tracks in an effort to save a drunk man. Driven by an uncharacteristic desire to rescue someone else, Kei follows Katou down into danger. While successful in saving him, the two boys are killed by the train.

Kei wakes up beside Katou in an apartment full of strangers and furnished by a giant black orb with a glass-like outer surface. After finding out that everyone in the room has recently died, words appear on the black ball tasking them with killing a strange creature. The ball equips Kei and the others with power suits and mysterious guns before sending them off to collect this bizarre bounty.

Although Kei discovers the mission to be far more deadly than originally suspected, he manages to survive. He is teleported back to the apartment where he and the other survivors are rewarded point values according to their actions in battle by the black sphere, which a fellow survivor says is called "Gantz." Despite his death earlier that day, Kei is granted the ability to return to his daily life with one condition: he can be uprooted from his day at any time and summoned back to the apartment, where Gantz will task him and other recently deceased with the assassination of another target. 

While Katou dreads the inevitable return to Gantz, Kei finds himself living for the sole purpose of carrying out these missions. Thriving in the heat of battle and learning to care about himself and his comrades, Kei faces escalating monstrous threats that begin to bleed out into his normal life outside of Gantz.

[Written by MAL Rewrite]

Gantz

GANTZ

Nagai, Go

Soft-hearted Akira Fudou has always been somewhat of a pushover. When he reunites with his childhood friend, Ryou Asuka, in a fateful encounter, Ryou reveals to him the terrifying reality of his father's research: demons exist and are planning to claim possession of the earth once again.

Eager to help his friend save humanity, Akira agrees to attend Black Sabbath, a party filled with depravity and corruption, to attempt to merge with a demon. A near-death encounter causes him to unify with Amon, a demon feared amongst even his own kind. Together they form Devilman, a combination of Amon's strength and Akira's pure heart.

After uniting with Amon, Akira begins to fight against the demons with his newfound power, desperate to stop the downfall of all human civilization.

[Written by MAL Rewrite]

Devilman

デビルマン

Fujisaki, Ryuu

Nothing ever happens in the village of Sotoba. In fact, it is viewed as nothing more than a hick town by its most outgoing and fashionable resident, Megumi Shimizu. She wants nothing more than to live in the city, far away from the villagers and their outdated ways of thinking. So when a new European-style house is built on a hill in the village, Megumi believes its residents must be cultured and refined, so she decides to pay them a visit.

However, Megumi doesn't return home that night. After a grueling search, she is found the next day, weak and anemic, with strange bite marks on her. But Megumi is just the first victim in what will soon become an epidemic in Sotoba as the bodies start piling up. The village doctor Toshio Ozaki, along with the priest Seishin Muroi, the loner Natsuno Yuuki, and the Tanaka siblings Kaori and Akira, begin investigating the strange deaths. But the answer to their predicament may be more than any of them can handle, for soon the dead could outnumber the living.

[Written by MAL Rewrite]

Shiki

屍鬼

In this grim and realistic take on classic fairy tales, Prince Ludwig, a female corpse collector, is ordered by his father to find himself a wife more suitable than the women he often brings into the castle. Along with his servant Wilhelm, they travel across the land in search of fair maidens from classic stories in hopes of finding Ludwig a wife.

(Source: Aerandria Scans)

Manga Like Why You Shouldn't Enter a Haunted House