The Sakai Pavilion – A City of World Heritage and Traditional Craftsmanship! Who on Earth is “Haniwa Bucho,” the Self-Proclaimed EXPO Cheer Ambassador!?

Sakai City, the second most populous city in Osaka Prefecture after Osaka City. In this vibrant city, a public servant known as the "Haniwa Director" has gained a cult-like following among some residents. Declaring himself (unofficially) as the "Unofficial Osaka-Kansai Expo Support Ambassador," he is determined to energize both the Osaka-Kansai Expo and Sakai City! But who exactly is this Haniwa Director?! We delve into the passionate spirit hidden behind his poker face.

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Sakai City is the second largest city in Osaka Prefecture in both population and area, after Osaka City. It is home to Japan’s largest burial mound, Tomb of Emperor Nintoku (Nintoku-tennō-ryō Kofun), and is also renowned for manufacturing that leverages traditional craftsmanship, such as knife-making.

At first glance, Sakai City may seem to have little direct connection with the Expo. However, in reality, several companies headquartered in the city are exhibiting at the event or providing products infused with their advanced technical expertise, revealing a much deeper relationship.

Amid this, “Haniwa Bucho” has (self-proclaimed) declared himself the “Unofficial Expo 2025 Support Ambassador,” aiming to connect Sakai with the world and energize the Expo. This character, who promotes Sakai’s landmarks and attractions through social media and events, raises the question: why is he supporting the Expo? We delved into the mystery behind his identity, as well as the passion that drives him and his future ambitions.

Haniwa Bucho

He is approximately 1,600 years old and has a deep love for the ancient burial mounds. On August 28, 2019 (Reiwa 1, 8/28 – a pun on “Ha/Niwa”), he officially became a Sakai city employee, and on August 28, 2020, he was appointed “Special Mission Director directly under the Mayor.” As Haniwa Bucho, CHO (Chief Haniwa Officer), he promotes Sakai City. Impressed by the “Unofficial Expo Support Ambassador” initiative by Sakai City and JICA Kansai, he declared himself the “Unofficial Expo 2025 Support Ambassador” in February 2024 (Reiwa 6), dedicating himself to energizing both the Expo and Sakai through his activities.

Who exactly is Haniwa Bucho?! From Ancient Burial Mounds to a Global Stage: Expanding the Scope of His Activities

— Nice to meet you, Haniwa Bucho. Thank you again for joining us today! I have to say, meeting you in person is quite impressive…

ハニワ部長

I’m thrilled (dokidoki!) to be interviewed like this… I began my activities in 2014 as “Haniwa Kachō,” promoting the Mozu-Furuichi Kofun Group for World Heritage registration. When the kofun cluster was officially recognized as a World Heritage Site in 2019, my efforts were acknowledged, and on August 28, 2020, I was promoted to Bucho. By the way, does this date ring any bells for you?

—828…ah…Haniwa!

ハニワ部長

That’s right. Please remember it as Haniwa Day. After that, I focused on promoting Japan’s largest burial mound, the Nintoku-tennō-ryō Kofun, and the following year, on Haniwa Day, I was promoted to “Mayor’s Direct Special Assignment Director,” responsible for PR for the entire city of Sakai. Starting with supporting the kofun cluster, my activities have steadily expanded to include citywide promotion and now, (unofficially) boosting the EXPO as well.

Original business card distributed at events

The inspiration to support EXPO comes from the “Hani-wonderful” children of Sakai

—Why did Haniwa-buchō, who plays a key role in the city’s public relations and leads a busy daily life, come to think, “I also want to support the EXPO”?

ハニワ部長

In Sakai City, in collaboration with JICA Kansai (Japan International Cooperation Agency, Kansai Center), “Unofficial EXPO Support Ambassadors” outreach classes are held at schools throughout the city. These EXPO outreach classes were launched with the hope that children would grow up to be responsible for the future of the Earth and broaden their global perspective. The program introduces children to cultures from around the world.

—Ahead of the EXPO, this initiative aims to deepen children’s understanding of the world. But how did it become the trigger for your involvement?

ハニワ部長

It turns out that these children, even after attending the program, have been diligently preparing to “greet people from around the world at the EXPO venue.” When I heard this, I was struck and thought, “What a Haniwa-nderful initiative!” Much like little “ambassadors” getting ready to welcome visitors, I too wanted to help liven up the EXPO and share the charms of Sakai with many people. Inspired by this, in February of this year, I (self-)declared myself the “Unofficial EXPO 2025 Osaka-Kansai Support Ambassador” on my official X account.

ーAs an ambassador, what kind of activities are you involved in?

ハニワ部長

One area where efforts remain strong is information sharing on the official X platform.

ハニワ部長

300 days before the Expo’s opening, we posted an homage image featuring the Sakai Citizen Arts and Culture Hall “Fenice Sakai” in the background, based on a photo shared by the Expo Association. To our surprise, the official Expo Association account quoted our post with applause. I was so moved I almost cried—though being a Haniwa, I can’t actually shed tears…

博覧会協会公式アカウントが拍手付きで引用したポスト

ーTaking a photo with this composition to make it resemble the original, what a clever idea! Wait a second… upon closer inspection, the “!” is shaped like a kofun (ancient tomb)…! You can really sense the attention to detail in every aspect.

ハニワ部長

I’m so glad you noticed! I couldn’t help but get kofun (excited, pun intended) about it! I’ve also been (unofficially) creating key visuals in collaboration with the Expo and Myakumyaku. This particular poster (pictured on the right) has been especially well-received. It seems that even the Expo Association understands my position as a Sakai City employee and has been supportive of my efforts to highlight Sakai’s charm. I feel that we’ve built a very positive relationship with the Expo Association—or at least, that’s how I (optimistically) interpret it!

Provided Photo: “240413_Countdown Signage @ Sakai City Hall”
On the milestone of 365 days before the opening, when meeting Myakumyaku face-to-face, they were encouraged with the words, “Let’s liven things up together!”
ハニワ部長

Recently, we had the pleasure of welcoming “Rene,” the official character of the Czech Pavilion and a friend of Myakumyaku, to the Sakai Alphonse Mucha Museum. There, we had a passionate discussion about the Expo. Mucha, a painter from what is now the Czech Republic, has a deep connection to world expositions. The museum even houses sketches he created for the 1900 Paris Expo. We highly encourage you to visit and see them for yourself!

Provided Photo: “240713_Rene Collaboration @ Fenice Sakai 1”
ハニワ部長

We also participate in events both inside and outside the city, moving our stiff bodies to directly communicate with attendees. Recently, we took the stage at the rock festival “METROCK 2024 OSAKA,” where we promoted the charm of the Expo and Sakai City to the audience. Since declaring ourselves as “Support Ambassadors,” we’ve been wearing a sash designed with Expo-colored kofun (ancient tomb) patterns. This sash has often become a conversation starter, leading to lively discussions about the Expo.

Sakai’s proud craftsmanship and people are set to shine at the Expo!

ーYou live and work in Sakai City, but is there any particular place or aspect you’d especially like people to know about?

ハニワ部長

First and foremost, it has to be the “Mozu-Furuichi Kofun Group.” One of its unique charms is how close it is to the local residents. I believe this is something special to a region where daily life and the ancient tombs have coexisted for over 1,600 years.

From the observation lobby on the 21st floor of Sakai City Hall, you can enjoy a panoramic view of the city, and the sheer size of the Nintoku-tenno-ryo Kofun (Emperor Nintoku’s Tomb) is immediately apparent.

ーLooking down from above like this, it’s quite a fascinating sight to see buildings and roads so close to the ancient tombs, with cars bustling by.

ハニワ部長

That’s right. By the way, the Nintoku-tenno-ryo Kofun visible from here is one of the “World’s Three Largest Tombs.” But, when compared to the “Great Roof Ring” of the Expo, which do you think is larger?

Provided by: Japan Association for the 2025 World Exposition

ーIsn’t the Grand Ring larger?

ハニワ部長

The Nintoku-tenno-ryo Kofun has a circumference of about 2.7 km, while the Great Roof Ring is about 2 km. Surprisingly, the Kofun is actually larger! Until now, we’ve described the size of the Kofun as “an area that could fit 12 Koshien Stadiums,” but ever since declaring myself an ambassador, I’ve developed a habit of comparing it to the Great Roof Ring. Walking around the Great Roof Ring should help you imagine the sheer size of the Kofun as well!

The Haniwa Director gazes from the observation lobby in the direction of “Yumeshima,” the Expo site, lost in thought.

ーWhat? It’s that big!? I’d love to see the Kofun up close for myself. Am I falling into the Director’s trap too…?

ハニワ部長

And Sakai City is also renowned as a city of history and culture. The traditions of tea ceremony, cutlery, incense, and chusen dyeing, among other traditional industries, continue to thrive to this day. For example, Sakai’s forged cutlery is cherished by chefs worldwide for its exceptional sharpness and craftsmanship. The spirit of mastery, which has been “steadily (Myaku-Myaku)” passed down through generations, remains one of Sakai’s greatest treasures.

ーWill the skills and people nurtured by Sakai City’s rich history also play an active role in the Osaka-Kansai Expo?

ハニワ部長

I’m so glad you asked! One of the official licensed Expo products, the “Myakumyaku Ame-chan Tenugui,” has already been released and is dyed using the “chusen” technique by artisans from Sakai. Chusen allows both the front and back to be dyed simultaneously, making it resistant to fading even after long-term use. Years from now, seeing the vibrant patterns will hopefully serve as a reminder of the Expo and Sakai, creating a lasting connection.

Provided by: Japan Association for the 2025 World Exposition

ーIt’s amazing that they can dye it so colorfully! Sakai indeed gives the impression of having many businesses that shine with such originality.

ハニワ部長

Exactly! More than 10 companies based in Sakai, including a major restaurant chain headquartered in the city, are planning to exhibit at the “Osaka Healthcare Pavilion.” Additionally, electric bicycles handled by a Sakai-based company have been adopted as on-site mobility for Expo staff. I hope more people get to know about these Sakai businesses that are contributing to the Expo in various fields.

Provided by: “Sakai City Hall Chusen Exhibition” (Exhibition now closed)

Sharing updates directly from the venue! Let’s spread the excitement and make it even more thrilling!

ーAs the Expo approaches, what kind of activities would you like to focus on leading up to the opening?

ハニワ部長

We will continue to actively share updates on social media and participate in events, but from here on, we want to focus even more on collaborating with citizens and local businesses to create excitement together.

—So, you’re saying that you’ll also accelerate activities rooted in the local community.

ハニワ部長

I truly hope that the residents of Sakai City, who are so close to me, will visit the Expo venue. My secret goal is to increase the number of people who say things like, “I saw Haniwa Director working hard, so I decided to go to the Expo,” or “I wanted to support it too, so I’ve unofficially become an ‘ambassador’ myself.” If possible, I’d like to visit the Expo venue before the opening and share updates on the construction progress of pavilions related to countries, companies, and organizations connected to Sakai.

ーSo, how do you plan to create excitement during the Expo’s duration?

ハニワ部長

Since Sakai City will have a presence at the Expo venue during the event, I plan to visit the site and share the excitement firsthand. I’m sure people from overseas will see me and exclaim, “Wow! Haniwonderful!” This once-in-a-lifetime opportunity to directly interact with people from around the world will be a chance to showcase the charm of Sakai. I hope to encourage visitors to come to Sakai themselves and experience its deep history, rich culture, and exceptional craftsmanship. Imagining the future society that will unfold at the venue makes my heart race and pulse with excitement! Though my head may be as hard as stone, I will continue to work with flexible thinking and a warm heart!

With a unique appearance of a Haniwa head paired with a suit, the Haniwa Director’s true identity is one of deep local pride, passion, and a great sense of humor. During the interview, there were even moments where he exchanged greetings with visitors to the observation lobby.
When asked whether following his official X account and keeping up with his activities might make the Expo even more enjoyable, he immediately responded, “Please look forward to it!” The day he creates a worldwide buzz may not be too far off.

Text: YAMASE Ryuichi
Photography: UTSUNOMIYA Misa
Planning & Editing: Ningen Editorial Team

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