The idea behind the story is a beautifully simple premise; a gateway to time travel in an unassuming cafe. But there are as many curious and magical details to the time travel itself as there are characters to meet. The customers of cafe Funiculi Funicula may travel back in time, to any time they like, for any reason they may have. However, they must return before their cup of coffee is cold. And there are a few more caveats to keep in mind too; you can only time travel when sitting in a particular seat within the cafe, and you must not move from that seat when you do travel to the past. Oh, and whatever is said and done when you do go back, will never change the future.