우니센몬텐 세이츠야 하코다테아사이치텐

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... 7,700 yen 'Sea Urchin', 'Extra Large King Crab', 'Snow Crab', 'Ibara Crab' - Ume... 6,600 yen 'Extra Large King Crab', 'Snow Crab', 'Ibara Crab' *The image shown is for Ume. *Due to rising raw material prices, some menu prices will be revised starting October 1, 2026. Thank you for your understanding.

A special donburi lavishly topped with the highest quality brand from Hokkaido, Kombu Mori produced Ezo Bafun Uni. In Kombu Mori Fishing Port, Kushiro Town, Hokkaido, Ezo Bafun is caught through diving fishing from October to December each year. The fishing season is only about 2 months long, making it an extremely rare item that is very difficult to obtain. We have procured the finest product that has been nurtured for about 4 years, maintaining its freshness. It grows by eating soft and flavorful 'Naga Kombu', resulting in a rich sweetness, a melting texture, and firm flesh without any watery taste. Please enjoy this exceptional flavor. ・Half... 15,400 yen

Available even during the off-season, the highest quality sea urchin is 'Hamachu Farm Sea Urchin'. Hamachu Farm Sea Urchin is widely used in top-tier sushi restaurants and is raised on high-quality kelp from the time it is a baby sea urchin, resulting in a product with minimal off-flavors and bitterness, and plenty of sweetness! This is a luxurious rice bowl topped with such Hamachu Farm Sea Urchin, available in limited quantities. - Half... 15,400 yen

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.

A consistently 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 store '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' (fatty tuna with scallions), 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, white... 6,600 yen / half... 5,500 yen; red... 7,700 yen / half... 6,600 yen. Please note that due to rising ingredient costs, some menu prices will be revised starting October 1, 2026. 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 presentation 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... 6,600 yen / half... 5,500 yen / red... 7,700 yen / half... 6,600 yen. Please note that due to rising raw material prices, some menu prices will be revised starting October 1, 2026. Thank you for your understanding.

Carefully selected salmon roe from Hokkaido, marinated in our special soy sauce for the highest quality. The rich flavor and umami burst from the fresh fish eggs, along with the unique sweetness of the roe, are irresistible. When you combine the best salmon roe with sea urchin, the deep umami that overflows from the bursting roe and the melting flavor of the sea urchin make it impossible to stop eating. Recommended toppings: large scallops, sweet shrimp, eel, white... 7,700 yen / half... 6,600 yen; red... 8,800 yen / half... 7,700 yen. Please note that due to rising ingredient prices, some menu prices will be revised starting October 1, 2026. 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 Seichi-ya, all in one bowl. The rich flavor of toro salmon is lavishly 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... 6,600 yen / Half... 5,500 yen - Red... 7,700 yen / Half... 6,600 yen. Please note that due to rising raw material prices, some menu prices will be revised starting October 1, 2026. Thank you for your understanding.

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 dish with a focus on quality, all presented in one box. 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.

We have finally added eel to our menu, which has received many requests 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, has a fluffy texture with a good amount of fat, yet is 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: additional eel.

You can now enjoy half of the Tokachi Beef Toro Flake Bowl and half of the specially selected uni from Seiichiya! Many customers have expressed their desire to eat uni as the main dish since they came to a uni specialty restaurant, but also want to try the Beef Toro Flake Bowl. They wondered if it could be made half and half since you can't eat that much uni as a topping. In response to these luxurious requests, we have created a bowl topped with half Tokachi Beef Toro Flake and half uni! The moment you take a bite, the melting umami of the beef spreads throughout your mouth, and when eaten with uni, it adds a rich sweetness that is exquisite! We also recommend mixing the uni and beef toro flakes together. This dish is perfect for those who want to enjoy both uni and beef! ・White…6,600 yen/Half…5,500 yen ・Red…7,700 yen/Half…6,600 yen *Due to rising raw material prices, some menu prices will be revised starting October 1, 2026. Thank you for your understanding.

For those who want to simply enjoy fresh sea urchin at a sea urchin specialty shop, this is the best choice! A luxurious set meal using a whole pack of sea urchin. An exquisite 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... 6,600 yen ・Red... 7,700 yen Recommended toppings ・Large scallops ・Extra salmon roe ・Botan shrimp *Due to rising raw material prices, some menu prices will be revised starting October 1, 2026. Thank you for your understanding.

This is a must-try dish when you come to Hakodate! A local specialty!! When soy sauce is added, the squid dances, 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.

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 even Uni Ji, who loves sushi, is such a fan of 'Yama Ko' bluefin tuna that we were able to be introduced to a sushi restaurant through acquaintances and use their tuna. I don't think there are any seafood bowl restaurants using 'Yama Ko' bluefin tuna. This dish allows you to compare five types of aged bluefin tuna: 'Akami' (lean), 'Chutoro' (medium fatty), 'Otoro' (fatty), 'Aburi' (seared), and 'Toro Taku' (tuna with pickled vegetables), which is irresistible for tuna lovers. Be sure to try the Toro Taku wrapped in seaweed! Half portion… 2,750 yen Recommended toppings: large scallops, extra salmon roe, botan shrimp.

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 finest bluefin tuna from 'Yama Ko', 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 brings great satisfaction. With impressive visual impact and generous volume, this dish is the ultimate choice for shrimp lovers, allowing you to savor sweet shrimp to your heart's content. 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.

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' allows you to enjoy the fragrant char while being a light dish 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 popping texture. Don't miss out on this carefully crafted parent-child bowl. Half... 2,750 yen Recommended toppings: large scallops, sea urchin, eel.

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 also a commitment to the rearing method. Instead of cramming them into small barns, the cattle grow up happily, eating delicious water and grass, and playing around in spacious exercise areas, 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, which are completely uncooked, pair excellently with toro taku! 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.

Special premium seafood bowl of the day + salmon roe + bafun sea urchin. Please refer to the seafood bowl POP for today's contents. 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.

This is a carefully opened, thick and fatty rare extra-large size of true hokke, caught in Shakotan from Yoichi, and meticulously prepared by hand. The humidity, airflow, and temperature are strictly controlled 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 dish is made by opening the fresh 'true hokke' from the back and drying it overnight with 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. *Please note that we use 'true hokke' and not '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 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 umami, 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.

Teburi Island in Hokkaido is a small island surrounded by the Sea of Japan, measuring about 12 km in circumference. Located offshore, Teburi Island has fast tidal currents and an environment where high-quality kelp thrives. The sea urchins that grow by feeding on this exquisite kelp are free of any unpleasant odor and possess an exceptionally rich sweetness, making them a delicacy. Half serving... 8,800 yen

The most popular menu item at Seichi-ya! Our exclusive buyer sources delicious sea urchin from across the country every day, and we carefully pack each piece of sea urchin at our processing facility in Yoichi Town. The '5 Types of Sea Urchin Comparison Bowl' showcases the differences in size, shape, and flavor 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 to dig in! - Half... 6,600 yen Recommended toppings: Double sea urchin, large scallop, botan 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 slowly or enjoy it as a side dish with sake. Recommended topping is double sea urchin! Would you like to try an abundance of sea urchin?

A luxurious 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. [Warning!] 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. *Due to the rise in raw material prices, some menu prices will be revised starting October 1, 2026. Thank you for your understanding.

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

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

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

Hokkaido-produced 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 in 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 lavish sashimi platter featuring 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 Hakodate specialty!! When soy sauce is added, the squid dances, and the finishing touch is grilling the tentacles on a tabletop grill, an astonishing 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 shop'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