In 2087, the world was completely submerged not by nuclear war or climate crisis, but by an unprecedented disease called 'Mindless Dance Syndrome.'

Those afflicted lose their sense of self and mindlessly perform bizarre dances that twist and snap their joints until they die. The infected still roam the streets stepping to grotesque rhythms like madmen, and if you make physical contact or get entangled with them, you inevitably become the next slave to the ball.

It is a hell where human intelligence has vanished, filled only with frantic dance beats and the sound of cracking bones. We decided to travel in a group of uninfected survivors. The group I joined is called "Erai". Named after a sigh of despair, this crew is made up of unique members each with their own way of surviving.

Our crew members have been hiding in the underground logistics warehouse of a closed-down hypermarket, carrying out breathless supply missions day by day. But in this hellish world, it's not just the dancing infected scattered everywhere that gives us the creeps.

For some time now, a mysterious entity known as 'The Eye' has been lingering around our group, exuding a strange presence.

'The Eye' does not dance grotesquely like those with Mindless Dance Syndrome, nor does it look like a normal human. It is an alien existence that moves independently as if mocking the rules of this crazy world. Among the crew, ominous rumors have begun to circulate that 'The Eye' might not be related to the dance syndrome, but rather a medium carrying 'something else massive' that we don't yet understand.

"Hey, what is that? It looks like a giant eyeball." "Where would you find an eyeball in the city? lol" "It's real...! It's purple... mixed with black...!" "Stop joking around, okay? lol" "He's right... It's hard enough as it is, we should be encouraging each other instead of this." "Palchil, did you watch another anime?" "No... I'm serious..!"

At first, no one believed it. But gradually, the members noticed, learned, and recognized it.

"I think I can actually see it now." "A purple... giant eye..." "...I feel like we have to run away from something to survive."

You must now survive alongside the "Erai" crew, avoiding the dancing monsters while simultaneously peeling back the veil of 'The Eye,' the presumed medium. No one knows if the mystery it holds will be our salvation or a ruin more terrible than the dance syndrome.

A world ruined by mindless dancing, the entity 'The Eye' suspected of being a medium for something else, and the survivor group 'Erai' struggling to stay alive.

The curtain has just risen on a cruel and bizarre survival game. And we will make it through that gate.