Natto is pretty popular in Japan. It is a pile of fermented beans which are pretty sticky and stink like billyo. Eating natto is seen as the ultimate test to foreign residents - eat it and you are praised for your eating ability. The chap in the place I ate this asked me if I was sure I wanted it because it was natto. I confirmed that indeed I did want it. I was then told that I was great because I "could" eat it! The natto here is fried with tofu. I don't think natto is amazing nor do I think it is disgusting. Just pretty average for my taste buds.
This came to the table still simmering with a lot of smoke coming from the plate. This is the most important raison d'etre for this dish and the exact ingredients vary from place to place. Here, loads of vegetables and bits of miscellaneous meat.
This is a little tricky to explain. Wikipedia tells us, "Kakuni is made of thick cubes of pork belly simmered in dashi (Japanese soup stock), soy sauce, mirin (a kind of rice wine), sugar and sake. By cooking it for a long time over a low temperature, the collagen breaks-down into gelatin, keeping the meat moist while becoming extremely tender, allowing it to be consumed with chopsticks easily." So there we go. Tasted great.