Waitress at the Time of Eve café. Her waitress outfit suits her well. She acts cheerful and carefree, but also somehow gives off a mysterious vibe. The café is very important to her, and she's quite severe with customers who don't follow the café's house rule. She seems to be particular about the naming of items on the menu.

Spoiler

It is revealed in the movie adaptation that Nagi is in fact human and the victim of the injury incident caused by the robotic ethics committee when she was five. Source:wikipedia

(Source: Official Website - English)