Honestly, considering it's labelled as a fast food chain, I'd still recommend to check it out if you're visiting Hakodate (or Hokkaido in general). Apparently it's an exclusive chain that only exists in Hokkaido. The interiors are somewhat western-inspired, but it's still more interesting than any western fast food chain (McDonald's etc), and I think it has a very peculiar style. I ordered the most popular Chinese fried chicken burger and was totally satisfied. I had it as part of a set with fries and tea, but I'm not a big fan of fries, and I didn't like them much, they were too soft and not crunchy at all. Also, the tea is just a regular ice-cold tea, the same one you're served with in other Japanese restaurants, so nothing special. I'd rather recommend getting one/two burgers (depending on how much you're hungry) and the guaranà drink. If you're up for a sweet treat, they also serve soft creams with various toppings. I had the banana and chocolate one and enjoyed it a lot. I think this shop gets less attention than its neighbour in the bay area, so make sure to check this out if the other one gets too crowded, otherwise I bet they're identical. Last but not least, it's quite cheap.