Kim, Carnby

Hongpil

With a nasty attitude and something rotten in his soul, high school student Yu Seongbin has picked the weak Han Gyuhwan as his victim. As no one cares enough to put a stop to the violence Gyuhwan suffers, his mind festers with fantasies of standing up to his bully and the useless adults around him, picturing himself pulling out a shotgun to exterminate them all.

When their class leaves for a trip, it quickly spirals into a living nightmare for Gyuhwan. Seongbin inevitably starts harassing him, but Gyuhwan finally finds the courage to resist him. However, his bravery is short-lived, and he escapes into the woods, with an enraged Seongbin close behind him. But after he falls off a cliff, Gyuhwan stumbles upon a strange shotgun and a box of 30 bullets that he, in his desperation and exhaustion, intends for his classmates and apathetic teacher.

Back at the camp, the class' talent show turns sinister. Something unnatural creeps in from the shadows, and as people begin transforming into twisted, bloodthirsty monsters, it seems that only Gyuhwan's mysterious shotgun can truly finish them off.

[Written by MAL Rewrite]

Shotgun Boy

엽총소년

Nabeya, Yakan

New teacher Yuu Okada and his senior, Ms. Rumi are on a field trip with their 16 elementary students to Sanrio Puroland. But suddenly they wander into a mysterious and horrific theme park called "Yuropia!" Amid their confusion, ominous Frog Egg mascots announce that the only way for them to escape is to "conquer the attractions and gather 10 medals." Will they be able to get out of Yuropia in one piece?! This is a story for those of you who "carry pain in your heart."

(Source: Kadokawa, translated)

Maimaimaigoen

まいまいまいごえん

Im, Ae-Joo

The rampant spread of a virus has turned most humans into grotesque beings called "the Rotten." Amidst the ruin, Seonho leads a small group of survivors and protects his companion Haesoo, who is bullied for being weak and timid. Seonho's group is thrilled to meet more survivors with a large stockpile of supplies—until they realize that this new group is shockingly barbaric and cruel. By far the most twisted is their leader Won, who has his dangerous eyes on Seonho. Determined to shield Haesoo, Seonho makes a deal with Won... but will any of them make it out alive?

(Source: Tappytoon)

The Rotten

부식인

Jjaljjal-i

Told

During the fourth civil service exam, Lee Yeon-woo barely survives the "Human Qualification Exam," which turns humans into beasts, and receives a job offer from a suspicious company called the "Human Protection Company." Can Yeon-woo, investigator in the anomaly research team of the Humanity Protection Company, which isolates, secures, and studies abnormalities to protect humanity, safeguard the human world and survive until the end?

(Source: Kakao Entertainment, translated)

Human Protection Company

인류보호회사

Taebal

Kim, Hongtae

No one knows why these people are stranded here with death looming in the corner. As loneliness creeps in, it becomes all too easy to seek solace in others. But they must trust no one but themselves. Remember, the goal is to survive.

(Source: Webtoon Entertainment)

Survive

서바이브

Jeomsim

The world has been overrun by an unidentified virus, turning many people into cannibalistic monsters. The screams of dying people are drowned out by the cries of these monsters. Kim Jong-do, a boy who had lived a gloomy life due to his congenital lack of presence and inability to attract the attention of those around him, survived the end of the world as even the monsters ignored him. For some reason, he was able to communicate with a few of the monsters. In doing so, he managed to alleviate his loneliness just a bit through communication with the monsters, and by chance, he met his high school classmate, a girl named Cho Myung. Unlike the indifference of others, Cho Myung was one of the few people who showed interest in Kim Jong-do, and thus, Kim Jong-do's "non-existence" begins to shake.

(Source: Kakao Entertainment, translated)

The Non-Existence

무존재감

Lee, Yeon

Sighs of awe follow Eun Chaerin wherever she goes, as expected for the perfect protagonist of a run-of-the-mill romance novel. She was once the novel's reader in the real world, and now she has the opportunity to live it herself and have her storybook ending with the male lead, Yu Jeha. But everything goes south on the day Jeha is supposed to confess his feelings, for he turns into a disfigured zombie and bites Chaerin.

Instead of dying, Chaerin is forced to relive the same day, trapped in the loop of a bizarre zombie outbreak, unable to save Jeha. She desperately clings to him, as he is the only person she can see—all the background characters appear as nothing more than dark silhouettes to her. After almost four hundred repetitions, something unprecedented happens: a formless classmate pulls Chaerin to safety, and she catches a glimpse of their true appearance before dying again.

The possibility of unlocking and revealing the extra characters fills Chaerin with new vigor. If she forgets about saving Jeha and focuses on finding this unknown extra in her next regression, she may be able to reach her happy ending after all.

[Written by MAL Rewrite]

Surviving Romance

살아남은 로맨스

Asada, Nemui

Sada is an earnest high school teacher admired by students and colleagues alike, a man who always goes above and beyond both inside and outside of the classroom. One night while walking through the city, he stumbles upon a student being violently attacked in an alley. As he tries to call for help, Sada finds himself on the end of the attacker's blade, bleeding to death on the ground. When he wakes up on a slab in an unknown laboratory, he comes face-to-face with his savior, a scientist named Mamiya. But Sada quickly realizes that in cheating death, he has become something...inhuman. What's more, he's now fully dependent on Mamiya to survive. What awaits him in this new life of death and deadly secrets?

(Source: Seven Seas Entertainment)

Sleeping Dead

スリーピングデッド

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～

Eise

Gunbam

We've all had that nightmare where we're late for a test, right? How about the one where your teacher's trying to kill you?! Just me, huh? Guess it's only fair then that I woke up in an actual zombie-infested nightmare! Almost everyone on my campus has become a creepy, flesh-eating monster! Except for this one ax-wielding badass named Youngwon Ki. He seems perfectly fine with all the chaos. I'm glad he's here, but I don't get why he acts like we're close!

(Source: Tapas Media)

Dead Man's Switch

데드맨 스위치

Konoito, Nui

OMOCAT

Since the terrible tragedy of four years ago, Sunny hasn't set foot outside his house. Now, in an attempt to shake him out of his torpor, his family has decided to leave Faraway Town. Three days before the move, Sunny's childhood friend Kel shows up to hang out one last time—but the world outside the young shut-in's door has changed completely, and Sunny's reunion with his old pals goes from bad to worse. Whether by chance or fate, the chain of events that begin to unfold calls up a past they all thought was buried forever...

(Source: Kodansha USA)

Omori

OMORI

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]

12 Manga Like Escape Room