Dangerous Dungeon Escape

Briefly about Dangerous Dungeon Escape manga:

After Goh Insun’s unexpected death, he went not to hell or heaven, but to a dungeon. A place between the afterlife and the world of the living.

Dangerous Dungeon Escape manga.

And it is not an ordinary dungeon, but one with a system. To escape, Goh Insun, along with the other candidates, must pass through the dungeon under the relentless gaze of numerous dead men.