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

Ishikawa, Oreo

Himukana, Kurara

What happened in the classroom that night?! Kitahara, the Nanjo High School homeroom teacher of class 2-C, is involved in an unbelievable incident triggered by the disappearance of a female student, Tomoe Miyata... What happened to those 24 students, and who is behind this horror?!

(Source: Kadokawa, translated)

Watashi no Class no Seito ga, Hitoban de 24-nin Shinimashita.

私のクラスの生徒が、一晩で24人死にました。

Yuuki, Niko

Satou, Midori

The internet is full of creepypastas, cryptid sightings, tales of paranormal activity, and unsolved disappearances. These are mostly rumors and pranks fueled by trolls—entertainment. But the unlucky few learn the hard way that some legends are true. Many of these unfortunate souls are doomed, but their luck may change if they cross paths with the boy in the red hood. He roams from town to town and appears wherever strange things occur. Is he a light in the dark? Or living proof that monsters are all too real...?

(Source: Yen Press)

Kyoufu Collector

Horror Collector

恐怖コレクター

Mokumokuren

Best friends Yoshiki and Hikaru have been stuck together like glue for most of their lives. Living in a small village and being the only children their age, the two boys find solace in each other's company. Their friendship seems picturesque at first glance, but Yoshiki has noticed a shift in Hikaru's demeanor ever since one fateful summer.

The "Hikaru" that sits beside him now is nothing like his friend. Despite his physical appearance and memories remaining exactly the same, Yoshiki knows something is amiss and that the Hikaru he once knew is gone. When he brings this up, Hikaru partially transforms into an otherworldly being, threatening to kill Yoshiki if he cannot accept it—while also professing its love for him.

Wracked with grief and unable to let go of his best friend, Yoshiki struggles to move on with his life as he finds himself getting closer to the new Hikaru. At the same time, strange occurrences begin to plague their village, bringing unsettling chaos.

[Written by MAL Rewrite]

Hikaru ga Shinda Natsu

The Summer Hikaru Died

光が死んだ夏

Kaihou, Norimitsu

Chiba, Sadoru

A sequel to Gakkougurashi! that shows the aftermath of the characters.

Gakkougurashi! Otayori

School-Live! Letters

がっこうぐらし!～おたより～

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

moan

Wanna play a game? The only catch is, you're not just playing it, you've got to play your way out of it. That's exactly what is happening to Bada. And he's been at this for a while, trying to gather clues and items to find a way out of this damn horror RPG. The killer, the NPCs, the setting, Bada's now familiar with them all. He'll just have to endure a couple more games, maybe get killed a few more times...  But in this session, Nam Doha, someone who Bada thought was just an NPC, is suddenly acting strange. Has he been another player this entire time? Bada has to be tortured to end this storyline and start over and Doha has volunteered to do it, but the look in his eyes suggests he has other, even more sinister intentions in mind... What sadistic horrors must Bada endure to break free from this Dreadful Night?

(Source: Lezhin Entertainment)

Dreadful Night

드레드풀 나잇

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

Demizu, Posuka

Shirai, Kaiu

Yakusoku no Neverland: Tokubetsu Bangai-hen - Haha no Ketsui

The Promised Neverland: Special Side Story - A Mother's Determination

約束のネバーランド特別番外編 母の決意

Ryukishi07

Akase, Tomato

For a long time, Rika Furude never considered a life outside of the mountain village of Hinamizawa; spending every day with her friends seemed like it would be the best outcome she could ever hope for. However, a desire begins to stir in Rika's heart—one that she also wants her best friend, Satoko Houjou, to realize with her. Rika wishes to go to St. Lucia Academy, a prestigious school for well-to-do young ladies, something that is in direct contrast to the crying cicadas and rural nature of Hinamizawa. Satoko is hesitant, as she has never cared about studying, but after years of practice exams, both girls start their new lives at St. Lucia.

Rika's poise and graceful demeanor helps her fit in immediately at the new school, while Satoko struggles immensely. However, she was never really interested in adjusting—as long as she had Rika by her side. But when Rika befriends a group of refined young ladies, Satoko begins to feel isolated. Soon, her grades start to suffer, and the gap between the two friends continually widens until Satoko is at her breaking point. Left in a pit of despair, Satoko's desperation soon turns into something much darker, leading her to do the unthinkable.

[Written by MAL Rewrite]

Higurashi no Naku Koro ni Meguri

Higurashi When They Cry: Meguri

ひぐらしのなく頃に 巡

Keiichi Maebara has not lived in the rural village of Hinamizawa for long, but he has already made a group of close friends. His companions—consisting of Satoko Houjou, Rika Furude, Mion Sonozaki, and Rena Ryuuguu—all welcome Keiichi with open arms into their after-school club, where each day is filled with a flurry of games and penalties. However, happy faces can sometimes hide the most pain, and seemingly innocent actions can mask damning truths.

Strangely enough, these events have all happened before. As one individual observes these bizarre phenomena, they take steps to change the imminent tragedy that they know is coming. With the yearly Cotton Drifting Festival quickly approaching, it becomes clear that someone close to them is orchestrating the impending doom.

[Written by MAL Rewrite]

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