When an enigmatic black circle consumes a high school, Doyun and his peers are thrust into a lethal labyrinth where the laws of reality no longer apply. This psychological horror series follows their desperate struggle to navigate a school transformed into a gruesome gauntlet.

Inexplicable dark voids appearing across the globe reach a terrifying peak when a massive circle swallows a campus without warning. Trapped within shifting corridors, the students of the 44th period are hunted by unseen terrors as their school warps into a surreal labyrinth.

Doyun leads his classmates through the claustrophobic maze, balancing fragile trust against the constant threat of the abyss. To escape the black circle, the survivors must endure a gruesome gauntlet that tests their physical and psychological limits in this complete thriller.

Trapped in a school swallowed by a mysterious black circle, Doyun fights for survival in the 44th Period Survival Class manga.

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