... mushrooms and octopus.
I was really excited to try 'real' Japanese food on my trip, and I had heard great things about it from friends of mine who had been to Japan before.
It wasn't all foreign to me since there's quite a bit of Japanese food and influence in what Koreans eat, but it was so much better. The ramen shops were absolutely delicious, the dumplings were fabulous, most everything I ate was amazing.
One thing Koreans have adopted is the Tonkatsu, or fried pork cutlet and I had the best one I've ever eaten while in Japan. It also came with these fried potato cakes which were heavenly, super dangerous, and thankfully live far away from me.