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Kaisen Viking Iroha Fungsi Utamo: Interior Restoran by Daiki Inoshita

Kaisen Viking Iroha Fungsi Utamo: Interior Restoran by Daiki Inoshita is a highly esteemed winner of the very prestigious 2026 A' Design Award Perak in Interior Competition Category.


PerakInterior· 2026

Kaisen Viking Iroha Fungsi Utamo: Interior Restoran

by Daiki Inoshita

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

A' Design Award Perak Winner in Interior Category

Colors

The Design

About Kaisen Viking Iroha Fungsi Utamo: Interior Restoran

Kaisen Viking Iroha adolah restoran buffet bakapasitas gadang nan mandefinisikan baliak pangalaman makan sabagai pangalaman ruang jo perkotaan. Meja buffet nan talatak di tangah ruangan maatur sirkulasi manjadi lingkaran nan basambuang, mangurangi kasasakan sambia mampajaleh alua. Desain ko maintegrasikan pamandangan panorama Tokyo Dome City sabagai komponen aktif dari interior, maubah kota manjadi latakang nan dinamis. Batu alam jo kayu end-grain mahadiakan katahanan jo kadalaman material. Proyek ko maangkek pangalaman makan buffet manjadi sistem ruang nan imersif.

The Recognition

About the A' Design Award Perak

Kaisen Viking Iroha Fungsi Utamo: Interior Restoran adolah pamenang A' Design Award Perak, sabuah pangakuan nan luar biaso bapresti nan dibarikan ka rancangan tingkaik tatinggi, elok jo mangesankan. Pamenang Perak adolah karya nan sangaik cemerlang jo sangaik kreatif nan mamparlihatkan kapakaran, bakaik jo katajaman pikiran parancangnyo. Kaisen Viking Iroha Fungsi Utamo: Interior Restoran dipaokan manjadi karya nan mangaguikan, contoh tauladan, sangaik profesional jo inovatif sacaro dalam. Rancangan nan manang Perak iko adolah panemuan nan nampak jo dikagumi nan mambari sumbangan untuak maluaskan batas seni, ilimu, rancangan jo teknologi. Kaisen Viking Iroha Fungsi Utamo: Interior Restoran adolah ciptaan nan dicamburui banyak urang, nan mambangkikkan karinduan, mambaok parasaan positif jo malahiakan karagumon jo kakaguman.

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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