Author: htlab_admin

‘The Architecture of “Society 5.0”-Six Key Factors for a People-Centric and Sustainable Smart City-’ (ed. H-UTokyo Lab.) was released on SpringerOnline.

This book is English translation of the Japanese book ‘Society 5.0のアーキテクチャ 人中心で持続可能なスマートシティのキーファクター’, which was edited by H-UTokyo Lab. and published in December 2023.

By visiting this website, you can download the free eBook and order the hardcover book which will be published on 2 Jun 2025.
SpringerOnline website

 

 

【Bibliographic Information】
Title: The Architecture of “Society 5.0” -Six Key Factors for a People-Centric and Sustainable Smart City-
Editor: Hitachi-UTokyo Laboratory (H-UTokyo Lab.) (ed.)
Publisher: Springer Singapore
Copyright: 2025
Number of Pages: XXIX, 256

ISBN：
978-981-96-2929-9(eBook)
978-981-96-2928-2(Hardcover)
978-981-96-2931-2(Softcover)

【Table of Contents】

Prologue: The Architecture as Blueprint to Society 5.0

Part I Manifesting Society 5.0: The Evolution of Smart Cities

1 What Defines the Architecture? An Approach to the Architecture of Society 5.0
(Chiaki Hirai)
1.1 Architecture
1.2 Urban Architecture
1.3 Tomorrow’s Urban Architecture: Digital Architecture
1.4 Reference Architecture for Society 5.0
1.5 Information System Architecture
1.6 Understanding the Reference Architecture for Society 5.0
1.7 Balancing Economic Goals with Socioenvironmental Concerns
1.8 Smart City as the Embodiment of a People-Centered Society

2 Trends in Smart Cities: Global and Japanese Perspectives
(Tadashi Kaji, Takuya Kurita, Soichi Furuya, Yuki Igeta, and Atsushi Deguchi)
2.1 Before Society 5.0
2.1.1 Japanese Smart Cities: Energy Efficiency
2.1.2 European and North American Smart Cities: Solving Residents’ Problems
2.1.3 Smart Cities in Continental Asia: Efficient Infrastructure
2.2 Impact of Covid-19
2.2.1 Smart Cities Recognized as Digital Solutions for Preserving Life and the Economy
2.2.2 Turning a Corner: Smart Cities Recognized as a Real-Estate Value Proposition
2.3 Smart Cities Get a Fresh Start
2.3.1 Super Cities
2.3.2 The “Digital Garden-city Nation”
2.3.3 G20 Global Smart Cities Alliance
2.4 Smart Cities as the Embodiments of Society 5.0
2.5 Reviewing Past Smart-City Initiatives in Japan
2.5.1 Kashiwa-no-ha Smart City (Kashiwa, Chiba)
2.5.2 Dai-Maru-Yū Smart City (Chiyoda, Tokyo)
2.5.3 Smart-City Takeshiba (Minato, Tokyo)
2.5.4 Kibi Kōgen City (Kibichūō, Kaga District, Okayama Prefecture)
2.5.5 Taiji Town (Wakayama Prefecture)
2.5.6 Susami Smart City (Wakayama Prefecture)
2.5.7 Tsukuba Super Science City Initiative (Tsukuba, Ibaraki Prefecture)

Part II Approaches to Applying Society 5.0 Architecture in Smart Cities

3 Derivation of Key Factors as Methods and Implementation Procedures for Society 5.0 Architecture
(Atsushi Deguchi)
3.1 Intentional Interpretation of the Society 5.0 Reference Architecture
3.2 Complementing the Society 5.0 Reference Architecture with a Construction Method and Implementation Roadmap
3.3 Three Perspectives and Six Key Factors Added to the Architecture
3.3.1 Key Factors for Process
3.3.2 Key Factors for Interface
3.3.3 Key Factors for Organization
3.4 Addressing the Challenges Associated with a People-Centric Sustainable Smart City

4 Six Key Factors for Making a Smart City People-Centric and Sustainable
(Tomoyo Sasao and Shin Osaki)
4.1 For Smart Cities that Manifest Society 5.0
4.2 Key Factor 1: Social Acceptance
4.3 Key Factor 2: Data Governance
4.4 Key Factor 3: Citizen Participation
4.5 Key Factor 4: QoL-Based Assessment
4.6 Key Factor 5: Human Resource Development
4.7 Key Factor 6: Data Ecosystem
4.8 Applying the Key Factors in a Target Community

5 Social Acceptance
(Kaori Karasawa)
5.1 Thinking About Social Acceptance
5.1.1 Caring About Social Acceptance
5.1.2 How to Approach Social Acceptance
5.2 Case Studies on Social Acceptance
5.2.1 Individual-Attitudes Approach
5.2.2 Importance of Trust
5.2.3 Trust-Based Attitude Model for Social Acceptance
5.2.4 Empirical Evidence for the Importance of Trust
5.2.5 How to Gain Trust
5.2.6 The Interactions Approach
5.2.7 Opposition to Sidewalk Toronto: Background and Talking Points
5.3 For a Fruitful Conversation About Social Acceptance
5.3.1 Rethinking What Social Acceptance Means
5.3.2 Values a Smart City Embodies and the Actors

6 Data Governance
(Toshiya Watanabe and Tadashi Mima)
6.1 Relationship Between Smart Cities and Data
6.2 Risks in Using Data and AI
6.3 How to Treat the Risks Associated with Data Use
6.4 Balance of Benefits and Risks Determines Social Acceptability to Use of Data in Smart Cities

7 Citizen Participation
(Tomoyo Sasao and Yuki Igeta)
7.1 Citizen Participation in Smart Cities
7.2 Living Labs: History and Value
7.3 Living-Lab Practices: Kashiwa-no-ha Smart City
7.3.1 Program 1: Collecting and Displaying People’ s Feedback
7.3.2 Program 2: Creating an AI-Driven Service That Elderly People Can Use in Everyday Settings
7.3.3 Program 3: Envisage the Near Future
7.3.4 Program 4: Thinking About Trust
7.4 Design Points for Running Living Labs in Smart Cities
7.4.1 Service Co-creation
7.4.2 Themes in the Future Vision Category
7.4.3 Themes in the Fostering Understanding Category
7.4.4 Putting the Living Lab into Action

8 Smart City QoL-Based Assessment
(Kei Suzuki, Mitsuharu Tai, and Tomoyo Sasao)
8.1 Background
8.1.1 Assessing Smart Cities from a Citizen’s Perspective
8.1.2 Recent Developments, Methods for Measuring QoL
8.2 Instrument We Propose: ActiveQoL
8.2.1 An Evaluation Approach Focused on Quality of Activities
8.3 How ActiveQoL Works
8.3.1 ActiveQoL’s System for Automatic Estimation
8.3.2 Obtaining Data on Satisfaction with a View to Making ActiveQoL Capable of Automatic Estimation
8.4 Using ActiveQoL to Evaluate an Urban Program
8.5 Demonstrating the ActiveQoL Concept
8.6 Toward Urban QoL-Based Assessment

9 Human Resource Development for Smart Cities
(Shin Osaki and Atsushi Deguchi)
9.1 The Human Resources Required for Smart Cities
9.1.1 Cross-Field Jobs for Smart Cities
9.1.2 Three Types of Human Resource Required for Smart Cities
9.2 The Roles of the Architect and Coordinators
9.2.1 The Role of the Architect
9.2.2 The Role of Coordinators
9.3 Methodology for Human Resource Development
9.3.1 A Three-Tier Pyramid
9.3.2 Analysis and Synthesis
9.4 Training for Both Experts and Laypeople
9.4.1 Applying a Human Resource Development Program and Building the Organizational Infrastructure to Deploy Human Resources
9.4.2 Raising Citizens’ Literacy and Training Leaders
9.5 Organizational Framework
9.5.1 Public-Private/Civic-Academic Consortia
9.5.2 Project Management Organization
9.5.3 Living Lab

10 Data Ecosystem
(Soichi Furuya and Atsushi Deguchi)
10.1 Data as a New Community Resource
10.2 What Is a Data Ecosystem?
10.3 Social Infrastructure Supporting Data Use: Data Infrastructure
10.4 Data-Flow Functions and Measures for Promoting Data Use
10.5 Data Provider and Users’ Needs and Impediments
10.5.1 Measure 1: Support the Generation of Ideas for Using Data to Address Community Needs
10.5.2 Measure 2: Support from the Party That Wants to Use Data
10.6 For Continuous Value Creation
10.7 From Key Factors to Applications

Part III Applications for Smart Cities Toward Society 5.0:H-UTokyo Lab’s Initiatives

11 Project 1: Public Dialog in Data-Driven Urban Planning
(Shin Osaki and Yuki Igeta)
11.1 An Attempt at Data-Driven Urban Planning During Covid
11.1.1 The Value of Public Dialog in Data-Driven Urban Planning
11.1.2 Two Covid-Era Projects to Encourage Public Dialog
11.2 Visualizing Data Pertaining to Outdoor Public Spaces
11.2.1 Growing Interest in Outdoor Public Spaces: Background to the Project
11.2.2 Overview of Hanazono-Machi Street (in Matsuyama City, Ehime) and the Study
11.2.3 Features of Public Spaces that Encourage People to Stop
11.2.4 Using Data Visuals to Facilitate Public Dialog About Outdoor Public Spaces
11.2.5 Data Visualization as a Community-Building Process
11.3 Hybrid (Offline–Online) Public Dialog
11.3.1 The Potential and Limitations of Online Dialog Tools
11.3.2 Three Hypotheses on Online Public Dialog
11.3.3 Two Zoom-Based Workshops to Test the Hypotheses
11.3.4 An Unsuccessful Attempt at Asynchronous Online Dialog
11.3.5 Synchronous and Asynchronous Hybrid (Online–Offline) Dialog
11.3.6 Hybrid Public Dialog, Not Just Online Public Dialog
11.3.7 Dialog with Citizens Unable to Meet in Person
11.4 Public Dialog in Data-Driven Urban Planning

12 Project 2: Smart Aging
(Katsuya Iijima, Ken Naono, Yoshinori Sato, and Tadashi Mima)
12.1 The Need for Frailty Prevention
12.2 The Need to Supplement Conventional Health and Wellness Interventions with Programs for Encouraging Social Participation in Older Adults
12.3 Pioneering Frailty Prevention in Japan
12.4 A Task to Be Addressed to Enable the Use of Data for Frailty Prevention
12.5 Frailty-Prevention AI
12.6 Feasibility Study of Frailty-Prevention AI in Kashiwa-no-ha Smart-City Project
12.7 Datasets Used in the Kashiwa-no-ha Smart-City Project
12.8 Obtaining Consent Toward the Use of the Data
12.9 Making Resident-Led Frailty-Prevention Services a Reality
12.10 Toward a Sustainable Society of Smart Aging

13 Project 3: City Infrastructure Management for Value Creation
(Naoki Yoshimoto and Izuru Makihara)
13.1 Today’s Infrastructure Management and Its Problems
13.2 What Is Infrastructure Management?
13.3 Three Types of Value Infrastructure Delivers
13.4 Value-Creation Process
13.5 Causal-Analysis Technique for Creating Community Value
13.6 Toward Infrastructure Management That Creates Value

14 Six Key Factors as Infrastructure for a Digital Society
(Tomoyo Sasao, Shin Osaki, Hideyuki Matsuoka, Soichi Furuya, and Atsushi Deguchi)
14.1 Shared Frame of Reference for Creating People-Centric Smart Cities
14.2 Defining the Levels of Applying the Six Key Factors
14.2.1 Key Factor 1: Social Acceptance
14.2.2 Key Factor 2: Data Governance
14.2.3 Key Factor 3: Citizen Participation
14.2.4 Key Factor 4: QoL-Based Assessment
14.2.5 Key Factor 5: Human Resource Development
14.2.6 Factor 6: Data Ecosystem
14.3 Stepwise Implementation Based on the Key Factor Levels
14.4 Key Factors as Infrastructure for a Digital Society

15 Dialogue: Creating the Future Through Dialogue: How to Achieve Society 5.0 and Deliver Well-Being Without Exceeding Planetary Boundaries
(Teruo Fujii and Toshiaki Higashihara)
15.1 Changing Environment for Both University and Company
15.2 Acceleration of Green Transformation
15.3 Taking an All-Encompassing View of Environmental Problems
15.4 Need to Adopt a User Perspective
15.5 Treating Issues as Matters of Personal Concern
15.6 Improving Diversity, Equity, and Inclusion Through Mutual Understanding
15.7 Responsibilities of Science and Technology
15.8 Mutual Engagement for Development of Human Resources and Resolution of Challenges

Epilogue: Toward the Exploration of the New Frontier of Cyberspace

Glossary

7th H-UTokyo Lab. Industry-Academia Collaboration Forum “Toward Realizing Energy Systems to Support Society 5.0” was held.

H-UTokyo Lab. Industry-Academia Collaboration Forum7th Forum: “Toward Realizing Energy Systems to Support Society 5.0”

[Event Summary]
Date: January, 10, 2025 (Friday), 13:30~16:20
Venue: Hybrid event (Main venue: Ito Hall, Ito International Research Center; online via Zoom)
Access: https://www.u-tokyo.ac.jp/adm/iirc/ja/access.html
Organizer: Hitachi-UTokyo Laboratory

[Executive Summary]

Since 2018, Hitachi-UTokyo Lab. has published six editions of its proposal “Toward Realizing Energy Systems to Support Society 5.0.” The Proposal presents a series of proposals—based on backcasting simulation of energy supply and demand from 2050—on measures to overcome the gap between backcasting and forecasting in the process of achieving carbon neutrality (CN), quantitative calculations of energy cooperation achievable in 2030, and energy-transition scenarios including international cooperation. During the period of activity of Hitachi-UTokyo Lab., the circumstances surrounding Japan have been constantly changing, and Hitachi-UTokyo Lab. has published proposals on resilience responses to disasters such as earthquakes and typhoons, studies on energy supply and demand during fuel-price hikes due to international circumstances, and responses to increased energy demand in the ICT field (including data centers). At the 7th H-UTokyo Lab. Industry-Academia Collaboration Forum, the “integrated transition” proposed by Hitachi-UTokyo Lab.—which aims to promote the development of social systems (including power systems) that are essential for achieving carbon neutrality—will be introduced through concrete examples and considerations and subjected to in-depth discussion.

■Program

Facilitators:
Shinobu Yoshimura (Professor of the University of Tokyo)

Naoki Yoshimoto (Senior Chief Researcher of Hitachi, Ltd.)

  1. Opening Remarks
    Teruo Fujii (President of the University of Tokyo)

Toshiaki Higashihara (Executive chairman and CEO of Hitachi, Ltd.)

  1. Overview of Hitachi-UTokyo Lab.’s Activities and the 7th Edition of the Proposal (13:40-14:10)
    Naohiro Kusumi (General manager of the Center for Sustainability, Research and Development Group, Hitachi, Ltd.)
    Shinobu Yoshimura (Professor of Graduate School of Engineering, the University of Tokyo)
  2. Panel Discussion: Initiatives and Growth Strategies for Integrated Transition (14:25 -16:10)

Session 1 Japan in a New Phase of Green Transformation” (14:25-15:15)
Moderators:

Hideaki Shiroyama (Professor of the Graduate Schools for Law and Politics, the University of Tokyo)

Tomoko Suzuki (Corporate Chief Engineer Researcher of the Research and Development Group, Hitachi, Ltd.)

Panelists:
Yojiro Hatakeyama (Deputy Commissioner of the Agency for Natural Resources and Energy)

Dr. Tshilidzi Marwala (Rector of the United Nations University)

Takahiro Ueno (Senior Researcher of the Central Research Institute of Electric Power Industry (CRIEPI))

Session 2 “Energy Transition” – Creating an Evolving Carbon-neutral Society Through Use of Digital Technology (15:20-16:10)

Moderator:

Ryoichi Komiyama (Professor of the Graduate School of Engineering, the University of Tokyo)

Panelists:
Masahiro Chikushi (Director for Electricity Supply Policy, Agency for Natural Resources and Energy)

Koichiro Ito (Professor of the University of Chicago)

Hiroshi Ohashi (Vice President of the University of Tokyo)

Yumiko Iwafune (Professor of the Institute of Industrial Science, the University of Tokyo)

Tatsuya Yamada (Division General Manager, Business Planning & Management Division, Energy Business Administration Division, Hitachi, Ltd.)

  1. Closing Remarks (16:10-16:20)
    Itaru Nishizawa (Executive Officer and CTO of Hitachi, Ltd.)

Atsushi Deguchi (Executive Director and Vice President of the University of Tokyo, Professor of the Graduate School of Frontier Sciences, the University of Tokyo, Director of H-UTokyo Lab)

■ A place for exchanging research ideas (16:20-17:00; main venue only)
At the end of the 7th Forum, panels showing the results of our research at the Hitachi-UTokyo Lab will be exhibited. We hope that this exhibition will be utilized as a forum for exchange of research ideas.

 

 

 

Introduction Video to Urban Well-being for Mega City was released.

Introduction Video to Urban Well-being for Mega City have been uploaded on the University of Tokyo’s YouTube channel. In this video, the concept is briefly introduced using Tokyo as an example, and the future interactive systems that bridge the cyber and physical worlds are presented.
This video was exhibited at Smart City Expo World Congress 2023.

The document (English version) was released; 5th H-UTokyo Lab. Industry-Academia Collaboration Forum “Toward Realizing Energy Systems to Support Society 5.0”

The document (English version) was released;
5th H-UTokyo Lab. Industry-Academia Collaboration Forum “Toward Realizing Energy Systems to Support Society 5.0”

5th H-UTokyo Lab. Industry-Academia Collaboration Forum “Toward Realizing Energy Systems to Support Society 5.0” was held.

5th H-UTokyo Lab. Industry-Academia Collaboration Forum “Toward Realizing Energy Systems to Support Society 5.0” was held.

5th H-UTokyo Lab. Industry-Academia Collaboration Forum
Toward Realizing Energy Systems to Support Society 5.0
-Value creation by constructing energy systems and socio-technical scenarios toward carbon neutrality in 2050-

【EXECUTIVE SUMMARY】

The H-UTokyo Lab. (Hitachi and U-Tokyo Joint Research) has so far published up to Version 4 of its proposal titled “Toward Realizing Energy Systems to Support Society 5.0.” By creating transition scenarios in a variety of domains as starting points by forecasting backward in time (backcasting) from 2050, the Proposal has pointed out that processes toward carbon neutrality require adjustment capacity and a stable power supply to make maximum use of renewable energy as well as innovative carbon absorption techniques in fields that are difficult to electrify. Furthermore, to meet those requirements, it has proposed systems and policies to facilitate transitions in the industrial world. The Proposal has also placed importance on evaluating adjustment capacity and economic performance when attempting to harmonize an energy system with a regional area and on circulating resources and materials as deemed necessary for achieving a sustainable society.

At the same time, dramatic changes in the international situation, such as the sudden invasion of Ukraine by Russia in February 2022, are causing disruptions in society such as steep rises in the price of crude oil, LPG, minerals, electric power, and other resources, tightening in the supply and demand for power, and rising commodity prices. These conditions make it necessary to manage carbon neutrality while also adhering closely to the concept of S+3E (Safety + Energy security + Economic efficiency + Environmental sustainability) to ensure energy supplies and economic security.

At this, the 5th Industry-Academia Collaboration Forum, we will be looking back at the activities of the H-UTokyo Lab. to date while also giving thought on how achieving Society 5.0 to enrich society will affect the energy sector based on data. To this end, we will create energy transition scenarios and compile insights on achieving a carbon-neutral society. In this regard, we have attempted to quantitatively analyze energy systems based on data and conduct simulations linking an urban vision of the future with the supply and demand of energy. We will deepen our discussions on achieving energy systems to support Society 5.0 with a view to analyzing and evaluating complex and intertwined issues in a comprehensive manner and finding solutions.

【Date】January 25, 2023 (Wednesday) 13:00–17:10
【Venue】The University of Tokyo Hongo Campus, Yasuda Auditorium/Online
【Organizer】Hitachi-UTokyo Laboratory
【Language】Japanese

■Proposal ■

Proposal “Toward Realizing Energy Systems to Support Society 5.0″(Ver.5) (Eng.)

■ Leaflet ■

[Leaflet（PDF）]

■ PROGRAM ■
Facilitators
-Shinobu Yoshimura, Vice President, The University of Tokyo, Director, H-UTokyo Lab.
-Atsushi Baba, General Manager, Center for Technology Innovation–Decarbonized Energy, Research & Development Group, Hitachi, Ltd.
1. Opening Remarks（13:00～13:10）[YouTube]

【YouTube】

-Teruo Fujii, President, The University of Tokyo
-Toshiaki Higashihara, Director, Executive Chairman, Representative Executive Officer, Hitachi, Ltd.

2. Video Message（13:15～13:30）[YouTube]

-Professor Mary Ryan
(Vice-Provost (Research and Enterprise), Imperial College London)

3. Overview of Initiatives and Proposals by Hitachi-UTokyo  Laboratory（13:30～13:45）

-Shinobu Yoshimura, Vice President, The University of Tokyo, Director, H-UTokyo Lab.

4. Reports from H-UTokyo Lab.（13:45～15:35）
Part 1 Energy Transitions[YouTube]

Geopolitical Crises and Pathways for a Transition: Changing Landscapes and Local Perspectives

-Hideaki Shiroyama, Professor, Graduate School of Public Policy, The University of Tokyo
-Tomoko Suzuki, Corporate Chief Engineer, Research & Development Group, Hitachi, Ltd.

Part 2 Energy Systems to Support Society 5.0[YouTube]

S+3E of Bulk Power Systems for Carbon Neutral Society

-Akihiko Yokoyama, Professor Emeritus, The University of Tokyo

Coordination and Control Platform for Achieving S+3E and Creating Value through Coordination of Regional Resources

-Kazuhiko Ogimoto, Project Professor, Institute of Industrial Science, The University of Tokyo

Sustainable Energy Innovation with Local Communities

-Tomomichi Ito, Senior Manager, Center for Technology Innovation–Decarbonized Energy, Hitachi, Ltd.

Part 3 Energy and Social Innovation Led by Digital Technologies[YouTube]

Energy Simulation Assuming Carbon Neutrality by 2050

-Ryoichi Komiyama, Professor, Graduate School of Engineering, The University of Tokyo

Simulation of Linkage between Energy and Cities Aiming for Carbon Neutrality

-Naoki Yoshimoto, Senior Researcher, Center for Technology Innovation–Decarbonized Energy, Hitachi, Ltd.

Energy Policy toward Carbon Neutrality to Realize Sustainable Society and Industries

-Hiroshi Ohashi, Vice President, The University of Tokyo

———————-Break （15:35～15:55）———————-

5. Panel Discussion（15:55～17:00）[YouTube]

Value Creation through Energy and Regional Innovation Led by Data
Predictability in management and solutions based on data and premised on energy S+3E is important in making a transition to carbon neutrality. In addition, the use of data in local communities including data on energy customers not only has a large effect on the calculation of Scope 3 greenhouse gas supply-chain emissions but also on regional value creation. This panel discussion will take up value creation through energy and regional innovations based on data.

 

Facilitators:
-Shinobu Yoshimura, Vice President, The University of Tokyo, Director of H-UTokyo Lab.
-Tomoko Suzuki, Corporate Chief Engineer, Research & Development Group, Hitachi, Ltd.

 

Panelists (in alphabetical order)：
-Tokunari Anai, Manager, Inter-regional Power Exchange Promotion Office, Corporate Management and Planning Unit, Tokyo Electric Power Company Holdings, Inc.
-Yuji Inoue, Manager, Carbon Neutral Strategy Office, Corporate Planning Division, Tokuyama Corporation
-Yasushi Motojima, Deputy Counselor, Planning and Policy Department, and Director, Planning and Coordination Division–Smart City Promotion Office, Aizuwakamatsu City Hall
-Kaname Ogawa, Director, Electricity Infrastructure Division, Electricity and Gas Industry Department, Agency for Natural Resources and Energy
-Mari Yoshitaka, Fellow, Principal Sustainability Strategist, Mitsubishi UFJ Research and Consulting Co., Ltd., Visiting Professor, College of Arts and Sciences, The University of Tokyo
-Hiroshi Ohashi, Vice President, The University of Tokyo

6. Closing Remarks （17:00～17:10）[YouTube]

-Norihiro Suzuki, Vice President & Executive Officer, CTO, General Manager of Research & Development Group, Hitachi, Ltd.）
-Hiroaki Aihara, Executive Vice President, The University of Tokyo

Poster Session（17:20～18:10）

A poster session has been set up to enable forum participants to directly discuss current studies.
【Venue】Yasuda Auditorium, 3rd Floor Gallery

Introduction Videos about Habitat Innovation Project were released.

Introduction Videos about Habitat Innovation Project have been uploaded on the University of Tokyo’s YouTube channel. We are determined to build the sustainable smart city we are promoting through the Habitat Innovation Project.

Full version with English subtitles (8’02”)

Digest with English subtitles (3’13”)[YouTube]
Full version (Japanese)(8’02”)[YouTube]
Digest (Japanse)(3’13”)[YouTube]