In the span of a single minute, Cho Jae-Hwa, an ex-university student, along with thousands of others, is teleported to a seemingly endless dungeon. With no guidance, she encounters a mysterious young girl who introduces her to the Terminal system—a crucial tool for survival—as well as giving Jae-Hwa a reason to keep fighting.
Though the reasons behind their entrapment remain unknown, it becomes clear that their predicament is not the result of magic or disaster, but a deliberate act by humans.
