Taishuu Sakaba Wakao: Wakako-zake Betten

The manga centers on a small bar, which is a 15-minute walk from the nearest train station, and located in a questionable part of town. A man named Wakao owns the bar, and he always serves customers with a serious look on his face. He doesn't think his bar is that big of a deal compared to other bars in the area, and he serves a regular menu consisting of things like rolled omelettes and clams.
Note: Includes 8 extra chapters.