In a post-apocalyptic future world, in the corner of a certain underground shopping mall, there sits a standing bar.

The owner of the bar and her part-timer, a young android girl named Emi, run the place.

The bar thrives every day with many customers, including cyborgs, different species, soldiers, and thugs.

And today, too, a commotion is brewing. ......? (Synopsis from amazon.co.jp)