Experience Alaska's "Sustainable Seafood" at Tokyo Station and Hatagaya: Onigiri Specialty Store "ONI&Co." Celebrates 2nd Store Opening with Alaskan Black Cod, Sockeye Salmon, and Atka Mackerel on the Menu!
The Alaska Seafood Marketing Institute and onigiri specialty store "ONI&Co." are collaborating to host the "Alaska Seafood Fair" from May 1 to May 24, 2026, at two Tokyo locations. This event commemorates ONI&Co.'s second store opening and highlights the appeal of 100% natural and sustainable Alaska seafood through limited-edition onigiri and bento.
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- 📰 Published: May 1, 2026 at 22:00
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The Alaska Seafood Marketing Institute (headquartered in Juneau, Alaska, USA) is sponsoring the "Alaska Seafood Fair" to commemorate the opening of "Gransta Tokyo Store," the second branch of the onigiri specialty store "ONI&Co." which aims for global expansion with onigiri. From Friday, May 1, 2026, to Sunday, May 24, 2026, the fair will feature luxurious onigiri and bento using 100% natural and sustainable Alaska seafood at two locations: JR Tokyo Station "Gransta Tokyo Store" and "Tokyo Lab. Store (Hatagaya Store)."
Ms. Miyuki Kawaharada, representative of "ONI&Co.," sympathizes with the high quality and environmentally conscious approach of Alaska seafood, and actively incorporates carefully selected Alaskan ingredients into her menu. At this fair, in addition to the daily-available "Black Cod Saikyo-yaki with Maitake and Yuzu Okowa," the ever-popular "Natural Grilled Sockeye Salmon Onigiri" will also use Alaska sockeye salmon. Furthermore, a new "Alaska Atka Mackerel Bento," specially developed for this fair, will be introduced. The bounty of the Alaskan sea will be delivered from Tokyo's gateway, Tokyo Station, and Hatagaya.
Message from Representative Miyuki Kawaharada:
"I myself have visited Alaska and witnessed its magnificent nature and the thorough fisheries management practiced there. The 100% natural seafood raised in cold, clear waters is an authentic taste essential for our goal of 'making the world smile with onigiri.' We routinely trust its quality and adopt it for our menu, but with the opening of our second store, we planned this fair to once again allow everyone to experience the blessings of the Alaskan sea. Please enjoy the rich deliciousness nurtured by Alaska's nature at our two stores in Tokyo Station and Hatagaya."
About Alaska Seafood:
Alaska seafood is 100% natural seafood nurtured by cold, clear waters and abundant nature. Its biggest features are "100% natural" and "harvested through sustainable fisheries." In Alaska, strict fisheries management is thoroughly implemented to preserve the rich bounty of the sea for future generations. Also, to protect the genes of wild aquatic resources, ocean fish farming is prohibited, meaning all fish harvested in Alaska are wild-caught, nurtured by magnificent nature.
[Alaska Seafood Fair Outline]
Implementation Period: Friday, May 1, 2026 – Sunday, May 24, 2026
Participating Stores: ONI&Co. Gransta Tokyo Store / Tokyo Lab. Store (Hatagaya Store)
Target Menu: All 3 items
Alaska Black Cod Saikyo-yaki with Maitake and Yuzu Okowa
Price: ¥480
Plump, fatty natural black cod grilled with Saikyo miso. Enjoy the luxurious taste with aromatic okowa featuring maitake mushrooms and yuzu.
Alaska Natural Grilled Sockeye Salmon
Price: ¥340
Alaska natural sockeye salmon, characterized by firm flesh and rich umami nurtured by a harsh natural environment. Carefully grilled to bring out the best of the ingredient's quality and hand-formed with perilla leaf. Enjoy the deep flavor unique to wild-caught fish with every bite.
Alaska Atka Mackerel Bento with Yuzu Daikon
Price: ¥1,320
A new bento specially developed for this fair. The fatty, plump flesh of Alaska Atka mackerel pairs perfectly with refreshing yuzu daikon radish.
About ONI&Co.:
Rice Platformer Inc., which operates the onigiri specialty store "ONI&Co.," has the vision of "making onigiri a global standard for fast casual." It combines onigiri, Japan's soul food, with the latest technology to disseminate onigiri globally as a new era fast-casual concept. In September 2025, its first store, "ONI&Co. Tokyo Lab.," opened in Hatagaya, serving as a base for diversified business development including catering and pop-ups, in addition to takeout, while also functioning as a central kitchen. In April 2026, its second store opened inside "Gransta Tokyo," an 'ekimaka' commercial facility at JR Tokyo Station.
Official Website: https://www.oni-co.jp/
Instagram: @onico_jp
About Alaska Seafood Marketing Institute:
The Alaska Seafood Marketing Institute (ASMI) is a public-private partnership between the State of Alaska and the Alaska seafood industry, established to promote economic development utilizing sustainable seafood resources. It conducts various activities targeting general consumers and industry stakeholders worldwide to enhance the value of Alaska seafood products. For more details, please visit the official website and social media.
Ms. Miyuki Kawaharada, representative of "ONI&Co.," sympathizes with the high quality and environmentally conscious approach of Alaska seafood, and actively incorporates carefully selected Alaskan ingredients into her menu. At this fair, in addition to the daily-available "Black Cod Saikyo-yaki with Maitake and Yuzu Okowa," the ever-popular "Natural Grilled Sockeye Salmon Onigiri" will also use Alaska sockeye salmon. Furthermore, a new "Alaska Atka Mackerel Bento," specially developed for this fair, will be introduced. The bounty of the Alaskan sea will be delivered from Tokyo's gateway, Tokyo Station, and Hatagaya.
Message from Representative Miyuki Kawaharada:
"I myself have visited Alaska and witnessed its magnificent nature and the thorough fisheries management practiced there. The 100% natural seafood raised in cold, clear waters is an authentic taste essential for our goal of 'making the world smile with onigiri.' We routinely trust its quality and adopt it for our menu, but with the opening of our second store, we planned this fair to once again allow everyone to experience the blessings of the Alaskan sea. Please enjoy the rich deliciousness nurtured by Alaska's nature at our two stores in Tokyo Station and Hatagaya."
About Alaska Seafood:
Alaska seafood is 100% natural seafood nurtured by cold, clear waters and abundant nature. Its biggest features are "100% natural" and "harvested through sustainable fisheries." In Alaska, strict fisheries management is thoroughly implemented to preserve the rich bounty of the sea for future generations. Also, to protect the genes of wild aquatic resources, ocean fish farming is prohibited, meaning all fish harvested in Alaska are wild-caught, nurtured by magnificent nature.
[Alaska Seafood Fair Outline]
Implementation Period: Friday, May 1, 2026 – Sunday, May 24, 2026
Participating Stores: ONI&Co. Gransta Tokyo Store / Tokyo Lab. Store (Hatagaya Store)
Target Menu: All 3 items
Alaska Black Cod Saikyo-yaki with Maitake and Yuzu Okowa
Price: ¥480
Plump, fatty natural black cod grilled with Saikyo miso. Enjoy the luxurious taste with aromatic okowa featuring maitake mushrooms and yuzu.
Alaska Natural Grilled Sockeye Salmon
Price: ¥340
Alaska natural sockeye salmon, characterized by firm flesh and rich umami nurtured by a harsh natural environment. Carefully grilled to bring out the best of the ingredient's quality and hand-formed with perilla leaf. Enjoy the deep flavor unique to wild-caught fish with every bite.
Alaska Atka Mackerel Bento with Yuzu Daikon
Price: ¥1,320
A new bento specially developed for this fair. The fatty, plump flesh of Alaska Atka mackerel pairs perfectly with refreshing yuzu daikon radish.
About ONI&Co.:
Rice Platformer Inc., which operates the onigiri specialty store "ONI&Co.," has the vision of "making onigiri a global standard for fast casual." It combines onigiri, Japan's soul food, with the latest technology to disseminate onigiri globally as a new era fast-casual concept. In September 2025, its first store, "ONI&Co. Tokyo Lab.," opened in Hatagaya, serving as a base for diversified business development including catering and pop-ups, in addition to takeout, while also functioning as a central kitchen. In April 2026, its second store opened inside "Gransta Tokyo," an 'ekimaka' commercial facility at JR Tokyo Station.
Official Website: https://www.oni-co.jp/
Instagram: @onico_jp
About Alaska Seafood Marketing Institute:
The Alaska Seafood Marketing Institute (ASMI) is a public-private partnership between the State of Alaska and the Alaska seafood industry, established to promote economic development utilizing sustainable seafood resources. It conducts various activities targeting general consumers and industry stakeholders worldwide to enhance the value of Alaska seafood products. For more details, please visit the official website and social media.