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.

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Koseiwa - Originator of the Shark Fin Bun
A takeout-only shop famous for its luxurious Chinese-style “Original Shark Fin Bun,” generously filled with shark fin.
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 shop offers hot items such as Chinese buns, chimaki, and soup dumplings, with limited-time seasonal items appearing throughout the year. Its signature product, the “Original Shark Fin Bun,” is a luxurious delicacy packed with collagen-rich shark fin kneaded generously into a savory pork filling. The aroma and soft, silky texture of the shark fin make it irresistible. Other easy-to-enjoy shark fin dishes include “Golden Shark Fin Soup” and “Shark Fin Soup Dumplings.”
Many of the items sold here are also available chilled or frozen, making the shop an excellent place to pick up souvenirs.
Highlights
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A takeout-only shop famous for its “Original Shark Fin Bun.”
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Offers an easy way to enjoy premium ingredients, including the signature Shark Fin Bun and items like “Golden Shark Fin Soup.”
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In addition to Chinese buns and soup dumplings, seasonal limited-time items are also available.
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Many products are sold chilled or frozen, making them perfect souvenirs.
Photos
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The signature “Original Shark Fin Bun”
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Hot items such as Chinese chimaki are served fresh and steaming
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Look for the shop’s mascot character, Fukahire-man, at the storefront
Official FAQs
Frequently Asked Questions have been vetted and answered directly by each listing.
Q
Do you have menus in foreign languages or with pictures? (If so, please let us know the languages available.)
No.
Q
Is there free Wi-Fi available in the store?
No free Wi-Fi available.
Q
Is there a space to eat in?
No, there isn't.
Reviews
Some reviews are AI-translated.
Details
- Name in Japanese
- 元祖フカヒレまんの公生和(こうせいわ)
- Postal Code
- 231-0023
- Address
- Yamashitacho, Naka-ku, Yokohama City, Kanagawa
- Telephone
- 045-681-2276
- Closed
- Open every day
- Business Hours
- 10:30am - 8:00pm (Closed at 10:00pm on Weekends and holidays)
- Budget
- 1,000yen
- Access
- About 5 minutes walk from Minato Mirai Line’s Motomachi-Chukagai Station.
- Credit Cards
- Accepted
- Official Website
- Official Website (Japanese)
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