Bringing smiles to children in Ukraine

"Usmishka" means "smile" in Ukrainian. Led by Hideto "Pika" Chujo on the ground in Ukraine, we support children and women affected by the war and promote exchange between Japan and Ukraine.

ウクライナの子供たちに笑顔を届けたい

A Ukrainian girl holding a sign that reads 'I love Japan' in Japanese
At an evacuation shelter in Ukraine (March 2026)
100+support caravans
Since 2022working on the ground
4Wanpaku Sumo Ukraine tournaments
Transparencyhow donations are spent, publicly reported

Our Activities

What we do
A child receiving a Christmas gift at a show in Dnipro

SUPPORT FOR CHILDRENSupporting children

We support children traumatized by the war and children suffering from serious illness — visiting pediatric hospitals, holding events at evacuation shelters, and delivering gifts to bring back their smiles.

Read more (JP)

Power banks and portable power stations delivered to Kherson

HUMANITARIAN AIDHumanitarian aid

We deliver relief supplies and help secure housing. In 2025–2026, evacuating residents from dangerous areas has become our main activity. We also provided emergency power after the Kakhovka dam collapse, co-operate a shelter prioritizing people with disabilities, and deliver firewood each winter.

Read more (JP)

Calligraphy class at the Ukrainian-Japanese Center in Dnipro

CULTURAL EXCHANGECultural exchange

We share Japanese culture — sumo, kendama, origami, and music — with the people of Ukraine, including inviting young Ukrainian sumo wrestlers to Japan's national Wanpaku Sumo tournament.

Read more (JP)

Activity report to a member of the Japanese Diet

MATCHINGMatching

We strengthen people-to-people ties between Japan and Ukraine and contribute to Ukraine's recovery, operating the "Usmishka" Japan Center at Dnipro National University and building partnerships between universities, municipalities, and organizations.

Read more (JP)

Wanpaku Sumo Ukraine

Turning anxiety into hope
A young sumo wrestler aiming to compete in Japan

Courage, courtesy, gratitude

CourageCourtesyGratitude

Since 2023 we have held the Wanpaku Sumo Ukraine tournament every year. Even interrupted by air-raid sirens, the children give their all in the ring — and the winners are invited to the national Wanpaku Sumo tournament in Japan.

"I want to win on the dream stage in Japan and dedicate the victory to my father serving in the army." Your support makes dreams like this come true. The tournaments have been widely covered by Ukrainian media including public broadcaster Suspilne and ICTV.

About the invitation project (JP)

Evacuation of residents to safety

Evacuation

Evacuating residents from dangerous areas — work we have continued since the Kakhovka dam was destroyed in 2023 — has become our main activity in 2025–2026. Alongside the evacuation runs themselves, we supply fuel for the evacuation vehicles and cover their repair costs.

"Real heroes don't wear capes — sometimes they wear a Pikachu costume and have an endlessly kind heart."

—— from the Ukrainian humanitarian aid team we work alongside

Their post honoring Hideto Chujo — who fuels their vehicles, joins the evacuation runs and supports children — drew over 1,000 likes and many messages of thanks from people across Ukraine. See the post on Instagram.

History

Our journey

Into wartime Ukraine

Hideto Chujo entered Ukraine alone, beginning support caravans to evacuation shelters in Lviv, Bucha, Kyiv, Dnipro, Uzhhorod and beyond. His yellow Pikachu hoodie brought smiles back to children's faces.

Usmishka Association founded

Established to sustain support from Japan. Published the on-the-ground report "Walking Through Wartime Ukraine", featured in the Asahi Shimbun and other media.

Support Caravan #1

Using your donations, delivered winter goods, portable lights and power, solar panels and toys by truck across the country. Covered by NHK and local press; full accounts published.

Pika-Santa Caravan (#2)

Ukraine celebrates Christmas twice — Gregorian and Julian. Visited shelters, hospitals and families of children with disabilities in Kherson, Mykolaiv, Zaporizhzhia, Dnipro and Kharkiv as Santa, with events at Kyiv's largest pediatric hospital and an art museum in Dnipro.

Broadcast nationwide in Ukraine

Usmishka's work was aired across Ukraine by the national broadcaster and reported in Poland. Began building "Usmishka House", a learning and play space at a shelter in Dnipro.

First Wanpaku Sumo Ukraine tournament

Co-hosted a children's sumo tournament with Ukraine's Ministry of Sport — the first of its kind, covered by Ukrainian news.

Kakhovka dam collapse — emergency response

Distributed portable generators in Kherson from day one, plus 100 power banks and 10 power stations purchased with donations, working alongside officials of the city military administration. Received official invitations and letters of gratitude from the city and oblast; covered by US press.

First young wrestlers travel to Japan

Tournament champions Mykola (Mykolaiv) and Makar (Rivne) were invited to the national Wanpaku Sumo tournament at Ryogoku Kokugikan in Tokyo on July 30.

Departing for a stay of over six months

Left Haneda for Ukraine again, continuing Caravan #3 near the front lines — with every yen publicly accounted for.

Letter of gratitude from the Head of the Kherson City Military Administration

Roman Mrochko, Head of the Kherson City Military Administration, presented the award "for a significant personal contribution to volunteer assistance for residents of the Kherson city territorial community affected by the blowing up of the Kakhovka HPP dam". He has continued supporting the people of Kherson since leaving office. We currently work in Kherson in coordination with the Deputy Governor. See the post.

Letter of gratitude from Roman Mrochko, Head of the Kherson City Military Administration

2nd Wanpaku Sumo Ukraine tournament

Held March 8 at the Olympic Reserve Stadium in Dnipro — from building the ring to the awards ceremony — and covered nationwide by Suspilne, ICTV and live TV.

Zaporizhzhia Oblast relief

Responded to requests from Zaporizhzhia authorities and fellow aid workers, travelling to areas damaged by Russian shelling and flooding; also helped repair damaged homes near the Dnipro hydroelectric plant, which is located in the city of Zaporizhzhia.

Three young wrestlers in Japan; hospital support

Egor (Mykolaiv) and two others competed at Ryogoku Kokugikan. Emergency donations supported Kyiv's Okhmatdyt children's hospital after it was struck in July.

Letter of gratitude from the Governor of Dnipropetrovsk Oblast

Awarded for humanitarian work in the region. The governor was later appointed to lead the city administration of Odesa. See the post.

Award from the Governor of Dnipropetrovsk Oblast

Usmishka Health Project

Ran the Usmishka Health Project with dentists — cavity treatment, oral care and brushing lessons for children unable to evacuate far.

Ukrainian-Japanese Center opens in Dnipro

After signing a memorandum of understanding with Oles Honchar Dnipro National University on July 25 (article), the Ukrainian-Japanese Center opened on campus on October 27 (article). Working with the Ukraine-Japan Center in Kyiv, it offers Japanese language classes, calligraphy lessons and other cultural programs.

3rd tournament champions head to the Hakuho Cup

Winners of the 3rd Ukraine Children's Sumo Usmishka National Tournament were selected for Japan's Hakuho Cup; Makar returned to Japan for a second time.

Evacuation becomes our main activity

Evacuations from dangerous areas, continued since the 2023 Kakhovka dam collapse, became our central work in 2025–2026 — including fuel and vehicle-repair support for evacuation transport. See the post.

Winter firewood deliveries (every year)

Each winter, when electricity and heating are unstable, we deliver firewood to villages in rural areas. See the post.

Letter of gratitude from a Ukrainian government minister

Awarded for our humanitarian work by Minister Denys Uliutin of the Ministry of Social Policy, Family and Unity, who also heads the government's humanitarian support team. See the post.

Letter of gratitude from a Ukrainian government minister

4th sumo tournament

Working with the Ukrainian Sumo Federation, completed a national tournament for children and students despite air-raid interruptions. Regular visits to Okhmatdyt children's hospital continue, including making good-luck badges with children before surgery.

Over 100 caravans — Caravan #5 ongoing

Fighting still continues in the east and south. Supply runs, hospital visits, cultural exchange — under one motto: "May every child live a happy childhood."

Financial Reports

Full transparency

We publicly report how every caravan's donations were spent. (Amounts in JPY.)

Caravan #5 — interim reportas of end of Aug 2025, ongoing
Donations4,019,000
Distributed goods2,361,068gifts for children, batteries/power, event supplies
Outsourcing1,319,154dental care instruction by dentists, etc.
Travel123,570local transport in Ukraine
Fees147,539crowdfunding fees, etc.
Fuel342,828
Total expenses4,294,159
Balance−275,159covered by remainders of past caravans
Caravan #4 — final reportclosed Aug 31, 2024
Donations16,839,952
Distributed goods11,930,393
Event production1,732,013
Travel90,388
Consumables36,276
Fees668,622
Fuel1,140,324
Total expenses15,598,016
Remainder1,241,936

Kyiv Children's Hospital support (July 2024): donations 475,000 / distributed goods 1,218,053 / fees 19,580 / total expenses 1,237,633 / balance −762,633 (covered by Caravan #4 and past project remainders).

Caravan #3 — final reportclosed Aug 31, 2024
Donations13,506,954
Distributed goods12,272,672
Travel265,757
Fees157,520
Fuel139,792
Exchange loss72,367
Total expenses12,908,108
Remainder598,846

Includes emergency relief after the 2023 Kakhovka dam collapse (Dnipro, Bakhmut, Kherson and other areas in the east and south).

Caravan #2 — final reportDec 2022 – Jan 2023 Santa Caravan
Donations (carried over from #1)218,909
Donations (#2)433,000
Income subtotal651,909
Distributed goods445,781
PayPal fees19,458
Consumables19,213
Fuel74,008
Transport2,001
Expense subtotal560,461
Carried over91,448
Caravan #1 — final reportas of Dec 31, 2022
Donations1,687,000
PayPal fees70,327
Distributed goods1,175,693
Consumables88,583
Fuel82,623
Transport51,065
Expense subtotal1,468,291
Carried over218,909

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pika chujo @ChujoPika

"May every child live a happy childhood." Near-daily reports from the ground in Ukraine. Japan representative to the Volunteer Council of the Dnipropetrovsk Oblast Military Administration / head of the Ukrainian-Japanese Center "Usmishka" at Dnipro National University / co-operator of a shelter prioritizing people with disabilities.

Follow @ChujoPika

About Us

Organization

Message from the Chairman

We want to provide support from the ground-level perspective that governments and international organizations find difficult. Saving children deprived of a safe living environment by war and violence requires not only systems and care, but face-to-face relationships. Cultural exchange also encourages children emotionally and helps their potential grow. We support Hideto Chujo's work on the ground and use ICT to deliver support from Japan to the children of Ukraine. Thank you for your understanding and cooperation. — Nagaaki Kamada, Chairman

Organization & Officers

NameUsmishka Association (general incorporated association)
Address2246 Mure, Mure-cho, Takamatsu, Kagawa 761-0196, Japan
Emailinfo@usmishka.jp
ChairmanNagaaki Kamada
President of Kamacho Scale Co., Ltd. / 2019 President of JCI Japan
DirectorsHideto Chujo (JCI Senator / Advisor to JCI Ukraine / G20 YEA Japan Act President)
Marii Kitamura (2023 JCI Vice President)
AuditorTakafumi Kojima (2021 JCI President)