Yamamoto, Lunlun

In the early Showa period, the story begins when a young girl is found dead in a creek in Tokyo. Officer Sawatari, the police officer in charge of the investigation into the body, catches the eye of one Namidako Inukai, the founder of a new religious organization.

(Source: ANN)

Namidako-sama no Iutoori

涙子さまの言う通り

Mushino, Sunagimo

Fukao, Narabu

Saibou Shinkyoku: Cell of Empireo. - A Certain "0.5"

細胞神曲 -Cell of Empireo.- A certain "0.5"

Lovecraft, H. P.

Tanabe, Gou

In the winter of 1927-28, the isolated coastal settlement of Innsmouth, Massachusetts was assaulted by U.S. government agents—its waterfront burned and dynamited, its people taken away to internment camps.

Yet that was neither the beginning nor the end of the horror uncovered by a young antiquarian who traveled to Innsmouth in search of rumors from the town's dead past, only to find them still very much alive...and find truths lying under water deeper and colder than any earthly grave!

(Source: Dark Horse)

Innsmouth no Kage: Lovecraft Kessakushuu

H.P. Lovecraft's The Shadow Over Innsmouth

インスマスの影 ラヴクラフト傑作集

Michio, Yoru

Toudou, Ruka

Seiji Toono sometimes sees the people around him as monsters. It is a curse that had driven him to a life of despair, living out of internet cafés with nowhere to call home...but all that changes one twilit evening when he stumbles across a huge European mansion. There, Seiji meets a bewitchingly beautiful boy dressed in a kimono with a white peony motif on the shoulder, who introduces himself as Shiroshi Saijou. This mysterious young man seems to know more about Seiji than he does himself, and before he knows it, Seiji has agreed to become Shiroshi's assistant in exchange for room and board. Little does he know, however, this "proxy service," as Shiroshi puts it, is none other than outsourced death! Sending monster-possessed sinners to Hell, will bring Seiji face-to-face with terrifying new creatures each and every day!

(Source: Yen Press)

Jigoku Kurayami Hana mo Naki

Hell Is Dark with No Flowers

地獄くらやみ花もなき

Ryukishi07

Tokiya, Seigo

In the first year of Reiwa, Keitarou Maebara moves from Tokyo to Hinamizawa. He is excited about his new life in Hinamizawa as he gets to know the children of the former club members. Then one day, he meets a mysterious girl named Inori, and another girl who calls herself Kururu contacts Keitarou... Oyashiro-sama's curse transcends time and generations, and will happen again in the world of Reiwa...?

(Source: Square Enix, translated)

Higurashi no Naku Koro ni Rei: Hoshiwatashi-hen

ひぐらしのなく頃に令 星渡し編

In the isolated, desolate, decrepit village of Dunwich, Massachusetts, Wilbur Whateley is the hideous son of Lavinia Whateley, a deformed and unstable albino mother, and an unknown father. Strange events surround his birth and precocious development. Wilbur matures at an abnormal rate, reaching manhood within a decade. Locals shun him and his family, and animals fear and despise him due to an unnatural, inhuman odor emanating from his body. All the while, his grandfather, a sorcerer, indoctrinates him into certain dark rituals and the study of witchcraft.

(Source: Wikipedia)

Dunwich no Kai: Lovecraft Kessakushuu

H. P. Lovecraft's The Dunwich Horror

ダニッチの怪 ラヴクラフト傑作集

Shiono, Etorouji

Fukami, Makoto

Kaihou, Norimitsu

One day, a large hole named Asylum is discovered in Antarctica. At the same time, the mysterious coma-inducing illness Randolph Syndrome begins spreading around the world. Many countries sent an investigation squad to the asylum, believing it to be the cause of the disease, but not a single person safely returned. Sergiu Sol, a boy with a special resistance to the disease, and Antarctica's jack-of-all-trades Hildegard Olympiada Yamada, decide to take on the challenge of the large hole without a map, but...!? What is the cause of the coma-inducing disease? What in the world is the Asylum? Go down to the deep, jet-black bottom, one with insanity.

(Source: Square Enix, translated)

12 Manga Like Manhole

Namidako-sama no Iutoori

Saibou Shinkyoku: Cell of Empireo. - A Certain "0.5"

Innsmouth no Kage: Lovecraft Kessakushuu

Jigoku Kurayami Hana mo Naki

Higurashi no Naku Koro ni Rei: Hoshiwatashi-hen

Dunwich no Kai: Lovecraft Kessakushuu

Deep Insanity: Nirvana

Kisei Rettou

Doooom

Meijoushigatai Mono: Lovecraft Kessakushuu

Hai Kochira Kaikibu desu

Aquarium wa Odoranai