Megane cafe GLASS(2008)

Megane cafe GLASS

Glasses Cafe GLASS is...
A cafe where all the garcons wear glasses. For the sake of women who like glasses, the garcons are all beauties that wear glasses. It's a specialty cafe. From the start, the owner hired exceptional men as garcons.

And then a puzzling event occurrs...!?
This cafe of boundless peril is Kotaro's fate!

(Source: Libre, translated)

Note: Chapter count includes one extra and one 4-koma chapter.