We went to the 'piss ally' unsure what to expect. It is this cute little ally way which is very cramped and each restaurant seats about 10. You are squashed into these little holes in the wall but the owners are very friendly and have delicious food. I would recommend trying a few restaraunt so you get a different experience. My favourite was the one that sells soba and vegetable tempura. They only have 4 items in the menu hot or cold soba with vegetable tempura is delicious!!! Highly recommend!!
I loved this experience so unique!
Note: slurping your food is a sign of enjoyment so be prepared for locals to be doing this.