Served like Red Wine

Svenja repurposed trash to open her little café in city with a dwindling population. The air filtering and the door closing mechanism against the toxic air outside need repairs. An uncommen visitor enters. Svenja estimates the woman at least lived through three decades. Including those rough years when Earth's ecosystem broke down. Something about the visitor says danger. Yet, she needs the money of every single guest. A fast-paced near future fantasy short story about a bartender making ends meet.