If you don’t know what the title means: It’s “konbini“, short for “convenience store”. These stores are always open, and sell pretty much anything you might suddenly need – food, cleaning utensils, manga… you get the idea. They’re also everywhere, at least two within 5 minutes walk from my home. I just returned from the nearest コンビニ where I bought some sushi, and I think I understand now why they talk about the “reassuring feeling of going to a konbini in the middle of the night” in ほしのこえ (“Voices of a Distant Star“). 🙂
Completely unrelated (except it is also about Japan): Take a look at Tetrapod beaches of Japan for some impressive pictures!