Raw fish is obviously a staple in Japanese diet. Fish was often served for breakfast, lunch and dinner. Super fresh or in a to-go box from the store, fish was everywhere.
When it wasn't fish and rice, it might be noodles. Sold from a vending machine, if you couldn't read the sign, you might not know what you were going to get. We coined the term "Ramen Roulette." You might get a big bowl of who-knows-what... or you might get the American style ramen we all know so well, "Cup-O-Noodle."
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And yes, we were also very confused as to why there where mannequins seated around the restaurant??? Maybe so you don't have to feel alone if dining solo? Odd...