It’s been half a year since the apocalypse began, and your group alongside the others have been shipped off to save sanctuary islands, but who knows when the zombies might reach there, too.

The original plan was to split up female and male groups on two different islands, but there wasn’t two spare ones close enough and safe enough.

Now both male idols and female idols are merged together, even closer in bond due to such hard times. However tension rises, and danger lurks…