Wanko Soba is a traditional Japanese dish originating from Iwate Prefecture. It consists of small servings of soba noodles, typically served in a series of small bowls. Diners are encouraged to eat quickly, as the servers continuously refill the bowls until the customer signals they are finished. The experience of eating Wanko Soba is both fun and competitive, as many people try to eat as many bowls as possible. This dish is often accompanied by various toppings and dipping sauces, enhancing the flavor of the soba noodles. It is a popular attraction for tourists visiting Japan.