Koseiwa - Originator of the Shark Fin Bun
Founded in 1926 in Yokohama Chinatown-one of Japan’s three major Chinatowns-Koseiwa began as a shop specializing in Chinese ingredients. Today, it is known as a takeout-only store famous for its “Original Shark Fin Bun,” created in 1996 under the concept of “premium Chinese cuisine you can enjoy while walking.”
The filling is packed with shark fin, and the texture is really firm. The broth is rich and flavorful—you don't even need to add any extra sauce. It's tasty enough on its own.