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Kaisen Viking Iroha Interior de Restaurant by Daiki Inoshita

Kaisen Viking Iroha Interior de Restaurant by Daiki Inoshita is a highly esteemed winner of the very prestigious 2026 A' Design Award de Argint in Design Interior Competition Category.


ArgintInterior· 2026

Kaisen Viking Iroha Interior de Restaurant

by Daiki Inoshita

Client: H.I.S. Co., Ltd.

A' Design Award de Argint Winner in Interior Category

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The Design

About Kaisen Viking Iroha Interior de Restaurant

Kaisen Viking Iroha este un restaurant tip bufet cu capacitate mare, care redefinește experiența culinară ca o experiență spațială și urbană. Un tejghea de bufet poziționată central organizează circulația într-o buclă continuă, reducând aglomerația și sporind claritatea. Designul integrează priveliști panoramice ale Tokyo Dome City ca o componentă activă a interiorului, transformând orașul într-un fundal dinamic. Piatra naturală și lemnul cu fibra tăiată transversal introduc durabilitate și profunzime materială. Proiectul ridică experiența culinară de tip bufet la nivelul unui sistem spațial captivant.

The Recognition

About the A' Design Award de Argint

Kaisen Viking Iroha Interior de Restaurant a câștigat A' Design Award de Argint, o recunoaștere extraordinar de prestigioasă acordată designurilor de top, superbe și impresionante. Câștigătorii Argintului sunt lucrări extraordinar de strălucite și extrem de creative, care ilustrează expertiza, talentul și perspicacitatea remarcabile ale designerilor lor. Se așteaptă ca Kaisen Viking Iroha Interior de Restaurant să fie o lucrare minunată, de referință, remarcabil de profesionistă și profund inovatoare. Acest design câștigător al A' Design Award de Argint este o invenție foarte notabilă și admirată, care aduce beneficii și împinge limitele artei, științei, designului și tehnologiei. Kaisen Viking Iroha Interior de Restaurant este o creație extrem de invidiată, care trezește dorințe, aduce sentimente pozitive și stârnește uimire și mirare.

Behind the Design

Press Kit

Credits, team members and technical details provided by the designer.

Unique Properties
Kaisen Viking Iroha reinterprets the conventional buffet by synchronizing spatial composition, circulation, and urban context. A centrally positioned buffet counter organizes movement, while the surrounding panoramic views of Tokyo Dome City establish a continuous dialogue between interior and exterior.

The design shifts the buffet from a purely functional dining system into a layered experience where guests engage with food, space, and city simultaneously. Material selections such as natural stone and end-grain wood reinforce durability while expressing the passage of time, creating a tactile and atmospheric depth rarely achieved in high-turnover dining environments.
Dimensions & Packaging
Restaurant interior project featuring a centrally positioned buffet counter, fixed seating zones, and integrated bar functions. Materials include natural stone, end-grain wood, metal framing, and indirect lighting systems. The layout was designed to accommodate high guest turnover while maintaining clear circulation and efficient staff access within a large-scale dining environment.
Tags
Restaurant Interior, Buffet Restaurant, Japanese Contemporary Design, Interior Architecture, Material Expression, Dining Experience, Spatial Circulation, Urban Dining Experience
Production Technology
The interior was realized through close coordination between spatial planning, custom-built buffet counters, and integrated lighting systems. Natural stone surfaces and end-grain wood elements were precisely fabricated to withstand intensive daily use. Layered indirect lighting enhances material depth while supporting operational clarity. The project balances craftsmanship with efficiency through detailed construction management and material selection.
Design Challenge
The primary challenge was to integrate high operational efficiency with a meaningful spatial identity that connects the dining experience to its urban surroundings. This required balancing durability, circulation clarity, and visual openness without compromising comfort or atmosphere.
Research
Type of Research: Spatial and operational design research.
Research Objectives: To elevate the buffet dining experience through spatial quality.
Methodology: Analysis of circulation, material durability, and user behavior.
Results: Enhanced operational efficiency and a redefined dining experience that integrates urban context as a spatial asset. The project demonstrates that high-turnover restaurants can achieve both performance and experiential depth by aligning circulation, materiality, and environmental integration.
Inspiration
The project redefines the buffet as an urban dining experience, integrating the surrounding Tokyo Dome Cityscape into the interior as an active spatial component. Inspired by the Japanese concept of borrowed scenery, the design captures the energy, light, and temporal shifts of the city, transforming them into an integral part of the dining experience.

Rather than isolating the interior from its context, the project embraces the city as a dynamic backdrop, allowing guests to experience both the immediacy of food and the evolving presence of the urban environment simultaneously.
Project Duration
The project was designed and completed in 2025 in Tokyo Dome City, Tokyo, Japan.
Operation Flow
Guests enter through a defined entrance sequence and naturally circulate around the central buffet counter. Seating areas offer multiple dining options, while staff workflows are optimized through clear zoning and direct access to service areas.
Patents
Copyrights belong to the project owner, 2025.
Image Credits
Image #1: Photographer Satoru Umetsu (Nacása & Partners Inc.), Kaisen Viking Iroha, 2025.
Image #2: Photographer Satoru Umetsu (Nacása & Partners Inc.), Kaisen Viking Iroha, 2025.
Image #3: Photographer Satoru Umetsu (Nacása & Partners Inc.), Kaisen Viking Iroha, 2025.
Image #4: Photographer Satoru Umetsu (Nacása & Partners Inc.), Kaisen Viking Iroha, 2025.
Image #5: Photographer Satoru Umetsu (Nacása & Partners Inc.), Kaisen Viking Iroha, 2025.

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