우니센몬텐 세이츠야 하코다테아사이치텐

You can enjoy carefully selected seasonal seafood luxuriously with 'Matsu', a satisfying selection that balances popular ingredients with 'Take', and 'Ume', which allows you to casually enjoy fresh ingredients at a reasonable price. Ume: Enjoy casually. A dish where you can taste fresh ingredients at a reasonable price. ...3,300 yen. Take: A satisfying selection that balances popular ingredients, recommended for tourists as well. ...4,400 yen. Matsu: Luxuriously using carefully selected seasonal ingredients. A special selection that allows you to fully enjoy the blessings of the sea from Hokkaido. ...5,500 yen.

A stunning dish lavishly piled with rich and sweet sea urchin. Enjoy the visual impact and the umami that spreads throughout your mouth.

Using rich and creamy seafood from Hamanaka. This luxurious gunkan stands out for its melt-in-your-mouth texture and depth of flavor.

Using ingredients rich in flavor raised in the sea of Rausu. A piece that offers a strong taste and the aroma of the sea.

The most popular menu item at Seichi-ya! Our exclusive buyer sources delicious sea urchin from across the country every day, and we pack each piece with care at our own sea urchin processing facility in Yoichi. The '5 Types of Sea Urchin Tasting Bowl' showcases the differences in size, shape, and flavor of sea urchin from various regions. Seichi-ya's soy sauce and vinegared rice are crafted to create the ultimate sea urchin bowl. Start by enjoying the taste of the sea urchin without soy sauce, then add soy sauce to enjoy it with the vinegared rice. After that, place some sea urchin in the soy sauce dish, mix it up, and create a luxurious sea urchin soy sauce! Finally, pour the sea urchin soy sauce over the rice and eat it like a rice bowl with raw egg, allowing the harmony of sea urchin, vinegared rice, and soy sauce to spread in your mouth and elevate your experience. Ladies, don't be shy—dig in! - Half... Recommended toppings: double sea urchin, large scallop, sweet shrimp.

In response to customer requests to enjoy the sea urchin separately from rice, we have made our signature dish '5 Great Sea Urchin Tasting Bowl' available as '5 Great Sea Urchin Tasting Set'! Since the rice and sea urchin are served separately, it is recommended for those who want to savor the sea urchin or enjoy it as a side dish with drinks. Recommended topping is double sea urchin! Would you like to try an abundance of sea urchin?

This is the best choice for those who want to simply enjoy fresh sea urchin at a sea urchin specialty shop! A luxurious set meal that uses a whole pack of sea urchin. A superb dish that allows you to enjoy the natural sweetness and richness of the sea urchin. You can enjoy it as is with a little soy sauce, or make hand rolls, and finally, add one or two pieces of sea urchin to soy sauce, dissolve it, and finish it off like a rice bowl with egg! ・White... 6,050 yen ・Red... 7,150 yen Recommended toppings ・Large scallops ・Extra salmon roe ・Botan shrimp *Due to rising raw material prices, some menu prices will be revised starting November 1, 2025. Thank you for your understanding.

This is a must-try dish when you come to Hakodate! A local specialty!! When you pour soy sauce, the squid starts to dance, and the finale is a surprising seafood bowl with grilled tentacles on a tabletop grill!! *Prices are available from the staff. Includes live squid, salmon roe, fatty tuna, purple sea urchin, live squid, salmon roe, fatty tuna, sea urchin, live squid, salmon roe, fatty tuna. *The photo shows the premium version. Half... Prices are available from the staff.

Sweet shrimp account for about 70% of the total catch in Hokkaido, and Yoichi Town boasts the third highest catch in the country. Yoichi sweet shrimp are highly prized for their strong sweetness and high quality, with most being shipped to Toyosu, making them quite rare. When you sprinkle salt on these Yoichi sweet shrimp and let them rest a bit, their sweetness intensifies and the texture becomes rich and sticky. We serve about 30 pieces of these aged sweet shrimp generously piled up, with a high mound of 'Toro Taku' made from the best bluefin tuna from 'Yama Ko', which is said to be the best in Japan, standing tall in the center. The sticky texture and sweetness of the Yoichi sweet shrimp combined with the Toro Taku from 'Yama Ko' create a perfect match that provides great satisfaction. The visual impact and volume are both outstanding, making it the ultimate dish for shrimp lovers, allowing you to indulge in a mouthful of sweet shrimp. Half... 3,850 yen Recommended toppings: Botan shrimp, large scallops, sea urchin. *Due to rising raw material prices, some menu prices will be revised starting November 1, 2025. Thank you for your understanding.

Our bluefin tuna is sourced from 'Yama Ko', a tuna wholesaler said to be the best in Japan, located in Toyosu. They are a group of tuna professionals. Most Michelin-starred sushi restaurants across the country use 'Yama Ko' bluefin tuna, and we, as sushi lovers, are so fond of 'Yama Ko' bluefin tuna that we were able to introduce it through acquaintances at sushi restaurants. I don't think there are any seafood bowl shops using 'Yama Ko' bluefin tuna. This dish allows you to compare five varieties of aged bluefin tuna: 'Akami' (lean), 'Chutoro' (medium fatty), 'Otoro' (fatty), 'Aburi' (seared), and 'Torotaku' (fatty tuna with pickles), which is irresistible for tuna lovers. Be sure to try the Torotaku wrapped in seaweed! Half portion… 2,750 yen Recommended toppings: large scallops, extra salmon roe, sweet shrimp.

An unwaveringly popular menu item! Our bluefin tuna is sourced from 'Yama Ko', a tuna wholesaler said to be the best in Japan, located in Toyosu. This is the ultimate bowl combining the world-class sea urchin specialty shop 'Seiichi-ya' and the overwhelmingly best tuna wholesaler 'Yama Ko'! The bluefin tuna includes five varieties: 'Akami' (lean), 'Chutoro' (medium fatty), 'Otoro' (fatty), 'Aburi' (seared), and 'Torotaku', allowing for a luxurious comparison with sea urchin. Be sure to enjoy the sea urchin and Torotaku wrapped in hand rolls! Recommended toppings: Botan shrimp, large scallops, extra sea urchin, and more... 6,050 yen / Half... 4,950 yen / Red... 7,150 yen / Half... 6,050 yen. Please note that due to rising ingredient prices, some menu prices will be revised starting November 1, 2025. Thank you for your understanding.

This dish features high-quality salmon roe from Hokkaido, marinated in our special soy sauce. The fresh fish eggs burst with flavor and umami, and the unique sweetness of the roe is irresistible. When you combine the best ikura with uni, the deep umami from the bursting ikura and the melting richness of the uni make it impossible to stop eating. Recommended toppings: large scallops, sweet shrimp, eel, white... 6,050 yen / half... 4,950 yen; red... 7,150 yen / half... 6,050 yen. Please note that due to rising ingredient prices, some menu prices will be revised starting November 1, 2025. Thank you for your understanding.

The 'Toro Salmon Ikura Don' is loved by both children and adults. You can enjoy the refined and rich flavor of 'Toro Salmon' with three types: 'raw', 'marinated', and 'seared', where the fat melts gently in your mouth. In particular, the 'Seared Toro Salmon' offers a delightful roasted aroma and a rich umami flavor while being pleasantly light with just the right amount of fat. Next to the fatty salmon, please savor the rich flavor of ikura from Hokkaido, marinated in our special soy sauce, with its pop-in-your-mouth texture. Half portion... 2,750 yen Recommended toppings: large scallops, sea urchin, eel.

Special premium seafood bowl of the day + salmon roe + sea urchin. Please refer to the seafood bowl POP for details. Plum ◆ Seafood bowl of the day…2,200 yen Bamboo ◆ Seafood bowl of the day ◆ salmon roe…3,300 yen Pine ◆ Seafood bowl of the day ◆ salmon roe ◆ purple sea urchin…4,950 yen Recommended toppings: large scallops, abalone, additional sea urchin. *Due to rising raw material prices, some menu prices will be revised starting November 1, 2025. Thank you for your understanding.

Our beef toro flakes are made from beef processed in Tokachi Shimizu Town. This beef is raised based on the desire of 'Born Free', prioritizing healthy cattle rearing. The pastures that provide feed for the cattle are free from pesticides and minimize chemical fertilizers as much as possible. There is a commitment to the rearing process as well. Instead of cramming them into a small barn, they grow up happily eating delicious water and grass, bouncing around in a playground, just as the name Shimizu Town suggests. Taking over 36 months to grow without stress or physical burdens results in delicious beef. The non-heated beef toro flakes and toro taku pair exceptionally well! Enjoy the rich flavor, depth, and melt-in-your-mouth texture. Half... 2,200 yen Recommended toppings: Sea Urchin, Large Scallops, Botan Shrimp. *Due to rising raw material prices, some menu prices will be revised starting November 1, 2025. Thank you for your understanding.

You can now enjoy a half portion of Tokachi Beef Toro Flake Rice Bowl and a half portion of specially selected sea urchin from Seiichiya! Many customers have expressed their desire to eat sea urchin as the main dish since they came to a sea urchin specialty restaurant, but also want to try the beef toro flake rice bowl. They wondered if it could be made half and half since they can't eat that much sea urchin as a topping. In response to these luxurious requests, we have created a rice bowl topped with half Tokachi Beef Toro Flake and half sea urchin! The moment you take a bite, the melting umami of the beef spreads throughout your mouth, and when eaten with the sea urchin, it adds a rich sweetness that is exquisite! We also recommend mixing the sea urchin and beef toro flake together. This dish is perfect for those who want to enjoy both sea urchin and beef! ・White…6,050 yen/Half…4,950 yen ・Red…7,150 yen/Half…6,050 yen *Due to the rising prices of raw materials, some menu prices will be revised starting November 1, 2025. Thank you for your understanding.

This is a carefully opened, thick and fatty rare large-sized true hokke, caught in Shakotan from Yoichi, and prepared by hand. We meticulously manage humidity, airflow, and temperature to maximize the umami flavor in our 'Yoichiya Special One-Night Dried Fish.' The 'hokke' caught near Yoichi is particularly large, thick, and has excellent fat content. This exquisite fish is opened from the back and dried overnight using only 'sea salt' and 'cold wind.' The skin of this opened hokke is also very delicious. The perfect saltiness beautifully brings out the original flavor of the hokke. Delicious dried fish is made possible because fresh fish is carefully dried by artisans. *We use 'true hokke' instead of 'shima hokke.' Single item…1,320 yen Recommended toppings: additional sea urchin, additional salmon roe, eel. *Due to rising raw material prices, some menu prices will be revised starting November 1, 2025. Thank you for your understanding.

This dish was created from our desire to offer a menu where you can enjoy crab all year round, inspired by the popularity of our restaurant's winter specialty, the three major crab tasting rice bowl! We use snow crab, which is shredded for easy eating, and when combined with sea urchin, it is sure to bring a smile to your face! Adding the king crab leg meat as a topping enhances both the visual appeal and satisfaction! This is a dish where you can savor the juicy and rich crab along with our restaurant's pride, the sea urchin! Recommended toppings include king crab leg meat, large scallops, and more... 6,050 yen / half... 4,950 yen; red... 7,150 yen / half... 6,050 yen. Please note that due to rising raw material prices, some menu prices will be revised starting November 1, 2025. Thank you for your understanding.

The Uni Toro Salmon Bowl was created from customer feedback. It features popular salmon sashimi and the highest quality uni selected by the exclusive buyers of Seiichiya, all in one bowl. The rich flavor of toro salmon is luxuriously topped with three types: raw, marinated, and seared. The toro salmon has a refined and rich taste that melts in your mouth. Marinating intensifies the flavor, significantly enhancing its deliciousness. The seared version offers a fragrant char while maintaining a rich yet moderately light taste. Eating uni and salmon together creates a perfect blend of the mellow umami of salmon and the rich, sweet flavor of uni. The fat from the salmon enhances the creaminess of the uni, resulting in an incredibly luxurious taste. You can also sense a hint of the ocean's aroma, making it a rich combination. If you want to enjoy both the melting uni and the creamy toro salmon, this bowl is the perfect choice! Recommended toppings: Large scallops, button shrimp - White...6,050 yen/Half...4,950 yen - Red...7,150 yen/Half...6,050 yen. Please note that due to rising raw material prices, some menu prices will be revised starting November 1, 2025. Thank you for your understanding.

We have finally added eel to the menu, which has received a lot of feedback from foreign tourists. Our Unaju features domestically sourced eel, with our proud sauce and carefully selected ingredients including sansho pepper. The eel is fluffy, with a crispy skin, and during plating, half is placed skin-side up to enhance the crispy texture. Eel is rich in vitamins and collagen, and while it is fatty and the flesh is tender, it is surprisingly low in calories, making it a delightful ingredient for women. Above all, the glossy special sauce over the grilled eel served on rice, known as 'Unaju', is exquisite. Recommended topping: extra eel.

If we are going to feature unagi rice on the menu, we wanted to combine it with our essential sea urchin, which is a pride of our restaurant. We have created a unagi rice box with a focus on quality. The rich and creamy sea urchin skin is crispy, while the tender unagi is surprisingly well-matched, making us wish we had offered it sooner. Initially, we recommend enjoying the unagi and sea urchin separately, and then mixing them together for a delightful experience. Eating them together will surely fill your mouth with happiness. Please enjoy this new encounter between our proud sea urchin and the beautifully grilled unagi. ・White…7,700 yen ・Red…8,800 yen Recommended topping: Extra sea urchin unagi

This exquisite silver cod, characterized by its rich fat content and fluffy texture, is marinated in our special Saikyo miso using a unique method. It is finished with fresh seafood to create a mellow flavor that brings out the umami of the ingredients. Enjoy the fragrant aroma, rich taste, and soft texture. This is a hidden gem menu item with many secret fans! ・Single item…1,320 yen Recommended toppings: extra sea urchin, extra salmon roe, eel. *Due to rising raw material prices, some menu prices will be revised starting November 1, 2025. Thank you for your understanding.

A comparison of fresh and grilled Hakodate coastal purple sea urchin and bafun sea urchin.

This can be enjoyed even during the transitional season, featuring the highest quality sea urchin known as 'Hamachuka Farmed Uni.' Hamachuka Farmed Uni is widely used in top-tier sushi restaurants and is raised exclusively on high-quality kelp from the time it is a baby sea urchin, resulting in a product with minimal off-flavors and a rich sweetness! This is a luxurious uni don topped with such Hamachuka Farmed Uni, available in limited quantities. Half portion... 15,400 yen

A signature menu item available only in winter! The luxurious '3 Great Crabs Comparison Bowl' features the finest crabs selected during the most delicious winter season, including 'Extra Large King Crab', 'Snow Crab', and 'Ibara Crab'. Not only is the taste exceptional, but the visual impact and portion size make it our No. 1 dish. - Matsu... 7,150 yen 'Sea Urchin', 'Extra Large King Crab', 'Snow Crab', 'Ibara Crab' - Ume... 5,500 yen 'Extra Large King Crab', 'Snow Crab', 'Ibara Crab' *The image is of Ume.

A luxurious set of four pieces allowing you to compare different parts of squid. Be sure to enjoy the unique flavors of Hakodate.

The ultimate sea urchin bowl topped with double the sea urchin from the sea urchin tasting bowl. [Note!] After eating this, you will likely be haunted by dreams of sea urchin for a while...

Scallop adductor muscle from Hokkaido with unparalleled freshness! Thick and high-quality flesh with rich flavor.

When eaten in one bite, you can enjoy the bouncy texture that feels like dancing food.

Rich yet light soy sauce flavor. A pop-in-your-mouth texture.

Red: The Hokkaido Sea Urchin is rich and has a strong sweetness. White: The Purple Sea Urchin is mild and has a refined sweetness. White... 2,750 yen, Red... 3,850 yen

Hokkaido sourced Ezo abalone is characterized by its crunchy texture, rich coastal aroma, and deep flavor. Extra large... 1,760 yen

Yoichi sweet shrimp has a strong sweetness and high quality, making it rare as most of it is distributed to Toyosu.

Grilled with our proud sauce using domestically sourced eel.

The king of crabs, King Crab! Thick size with excellent texture.

Juicy and rich crab flavor, full of umami. It is shredded, making it easy to eat.

Using Tokachi beef from Hokkaido! Enjoy the melting flavor! It pairs exceptionally well with sea urchin. *Due to the rise in raw material prices, some menu prices will be revised starting November 1, 2025. Thank you for your understanding.

A crisp texture and gentle melt in the mouth. This nori pairs perfectly with seafood bowls.

A magnificent sashimi platter using fatty tuna, medium fatty tuna, red meat, marinated tuna, and tuna with scallions, sourced from Japan's top tuna wholesaler 'Yamakou'.

Currently, we are suspending the offering due to the squid fishing ban. A specialty of Hakodate!! When soy sauce is added, the squid dances, and the finishing touch is grilling the tentacles on a tabletop grill, a surprising seafood sashimi!! Please ask the staff for the price!

Uni giri made with the refreshing sweetness of purple sea urchin

Uni giri made with rich and sweet bafun uni.

Rice ball made with ikura from Hokkaido.

A rice ball generously made with our restaurant's popular shiso wakame.

Bento using plenty of sea urchin - White... 4,320 yen - Red... 5,400 yen

Comparison of half-raw sea urchin and grilled sea urchin - White... 4,320 yen - Red... 5,400 yen

A luxurious bento filled with sea urchin and salmon roe. White... 3,240 yen, Red... 4,320 yen

Perfectly paired with sea urchin! Bento with 5 types of bluefin tuna and sea urchin - White... 3,240 yen - Red... 4,320 yen