<Daimaru Kyoto Store - First Appearance> \High School Students x Rice Cooking Professionals Joint Development/ Delivering Kyoto's Food Culture with Onigiri for 2 Days [Kaiken Onigiri Project] April 25 (Sat) - 26 (Sun)
Sansai Foods' brand "Suishoan" will sell three types of onigiri jointly developed with students from Kyoto Municipal Kaiken High School at Daimaru Kyoto Store on April 25-26, 2026. This project aims to convey Kyoto's food culture through onigiri and provide practical learning opportunities for high school students.
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- 📰 Published: April 22, 2026 at 22:12
- 🔍 Collected: April 23, 2026 at 00:02 (1h 49m after Published)
- 🤖 AI Analyzed: April 23, 2026 at 02:32 (2h 30m after Collected)
Sansai Foods Co., Ltd. (Minami-ku, Kyoto City, Representative Director Yuki Tanimoto), operating the B2C brand "Suishoan," will sell three onigiri products jointly developed with students from Kyoto Municipal Kaiken High School for two days, April 25 (Saturday) and 26 (Sunday), 2026, at the Daimaru Kyoto Store B1 Delicatessen.
**Dates**
April 25 (Saturday) and 26 (Sunday), 2026
**Location**
Daimaru Kyoto Store B1 Delicatessen
**Business Hours**
10:00-20:00
**Products for Sale**
All 3 types / Hokkori Oyako-don Onigiri, Kitsune-don Onigiri, Jurokkokumai Onigiri
(300 yen each, tax included)
**■Product Development Story**
Product Development Scene
Kitsune-don Team
Meeting Scene
Hokkori Oyako-don Team
Event Sales Scene
November 2025 Kyoto Charm Market
Group photo in front of Sansai Foods
2025 Development Kick-off
The starting point for product development was the "Onigiri 1 Grand Prix," an in-school event held for three consecutive years as part of Kyoto Municipal Kaiken High School's exploratory learning "Kaiken Onigiri Project." Suishoan (Sansai Foods) participated as a judge in this project and, although not winning the grand prize, approached teams with brilliant ideas, starting product development with three teams in fiscal year 2025.
For commercialization, recipes were refined while sharing challenges from the perspective of rice cooking professionals. Students worked hand-in-hand with professionals, from reproducing package design proposals to planning product names and introductory texts.
After gaining experience through initial sales at the "Chushin Business Fair" in autumn 2025 and other events, the students themselves presented their sales plan to the person in charge at Daimaru Kyoto Store, realizing this official appearance.
**■Product Details**
The three types of onigiri are packed with ideas born from the students' desire to "re-recognize Kyoto's unique ingredients and food culture."
**Hokkori Oyako-don Onigiri**
300 yen (tax included)
Delivering the "warmth" of family gatherings. This onigiri allows you to enjoy the home-cooked taste of "Oyako-don" as it is, with a focus on the balance of rice, chicken, and egg.
Developed for students who miss home cooking after leaving their parents, this product will be sold at this event to parents whose children have recently left home for a new life.
**Kitsune-don Onigiri**
300 yen (tax included)
Somewhere nostalgic, Kyoto's home cooking in an onigiri. Yuba, chirimen jako, and aburaage are simmered sweet and savory in Kyoto-style dashi, creating a gentle flavor.
Born from the desire to spread Kyoto's home cooking through onigiri, the "Kitsune-don" onigiri is an exquisite dish that allows you to rediscover the charm of Kyoto.
**Jurokkokumai Saikyo-yaki Onigiri**
300 yen (tax included)
Delicious and healthy with Kyoto ingredients. Combining Saikyo-yaki, a representative Kyoto dish, with fiber-rich 16-grain rice, this dish achieves both deliciousness and health, making it a satisfying item.
This onigiri, born from the desire for people to "eat and be healthy," is gentle on both the mind and body.
**Message from the Students (excerpt)**
"These onigiri were jointly developed by Sansai Foods and Kaiken High School! The inspiration for these onigiri came from the Kaiken High School's in-school 'Onigiri Project.' The Onigiri Project was about who could make the most delicious onigiri! We didn't win first place, but Sansai Foods recognized our ideas, and we started product development. However, that product development was not so easy..."
"Please see Sansai Foods' official Instagram for the rest!"
Group photo on the day of the presentation at the store
**■Representative Comment**
Yuki Tanimoto, Representative Director: "To commercialize the students' ideas, there were many challenges such as spoilage due to moisture content, manufacturing processes, and cost. However, touched by the serious efforts of each team member, as rice cooking professionals, we organized and shaped each aspect one by one. In addition to the sales experience at previous events, selling at a department store will be a different experience. We hope this leads to even more practical learning for the high school students."
**■Future Outlook**
The Kaiken High School 3rd-year project is scheduled to conclude its sales activities in September 2026, but subsequent grades will take over the commercialization and sales activities through a similar process. Suishoan will continue to accompany them, developing the "student ideas x rice cooking professionals" model, which started in Kyoto, into a continuous industry-academia collaboration model.
**Dates**
April 25 (Saturday) and 26 (Sunday), 2026
**Location**
Daimaru Kyoto Store B1 Delicatessen
**Business Hours**
10:00-20:00
**Products for Sale**
All 3 types / Hokkori Oyako-don Onigiri, Kitsune-don Onigiri, Jurokkokumai Onigiri
(300 yen each, tax included)
**■Product Development Story**
Product Development Scene
Kitsune-don Team
Meeting Scene
Hokkori Oyako-don Team
Event Sales Scene
November 2025 Kyoto Charm Market
Group photo in front of Sansai Foods
2025 Development Kick-off
The starting point for product development was the "Onigiri 1 Grand Prix," an in-school event held for three consecutive years as part of Kyoto Municipal Kaiken High School's exploratory learning "Kaiken Onigiri Project." Suishoan (Sansai Foods) participated as a judge in this project and, although not winning the grand prize, approached teams with brilliant ideas, starting product development with three teams in fiscal year 2025.
For commercialization, recipes were refined while sharing challenges from the perspective of rice cooking professionals. Students worked hand-in-hand with professionals, from reproducing package design proposals to planning product names and introductory texts.
After gaining experience through initial sales at the "Chushin Business Fair" in autumn 2025 and other events, the students themselves presented their sales plan to the person in charge at Daimaru Kyoto Store, realizing this official appearance.
**■Product Details**
The three types of onigiri are packed with ideas born from the students' desire to "re-recognize Kyoto's unique ingredients and food culture."
**Hokkori Oyako-don Onigiri**
300 yen (tax included)
Delivering the "warmth" of family gatherings. This onigiri allows you to enjoy the home-cooked taste of "Oyako-don" as it is, with a focus on the balance of rice, chicken, and egg.
Developed for students who miss home cooking after leaving their parents, this product will be sold at this event to parents whose children have recently left home for a new life.
**Kitsune-don Onigiri**
300 yen (tax included)
Somewhere nostalgic, Kyoto's home cooking in an onigiri. Yuba, chirimen jako, and aburaage are simmered sweet and savory in Kyoto-style dashi, creating a gentle flavor.
Born from the desire to spread Kyoto's home cooking through onigiri, the "Kitsune-don" onigiri is an exquisite dish that allows you to rediscover the charm of Kyoto.
**Jurokkokumai Saikyo-yaki Onigiri**
300 yen (tax included)
Delicious and healthy with Kyoto ingredients. Combining Saikyo-yaki, a representative Kyoto dish, with fiber-rich 16-grain rice, this dish achieves both deliciousness and health, making it a satisfying item.
This onigiri, born from the desire for people to "eat and be healthy," is gentle on both the mind and body.
**Message from the Students (excerpt)**
"These onigiri were jointly developed by Sansai Foods and Kaiken High School! The inspiration for these onigiri came from the Kaiken High School's in-school 'Onigiri Project.' The Onigiri Project was about who could make the most delicious onigiri! We didn't win first place, but Sansai Foods recognized our ideas, and we started product development. However, that product development was not so easy..."
"Please see Sansai Foods' official Instagram for the rest!"
Group photo on the day of the presentation at the store
**■Representative Comment**
Yuki Tanimoto, Representative Director: "To commercialize the students' ideas, there were many challenges such as spoilage due to moisture content, manufacturing processes, and cost. However, touched by the serious efforts of each team member, as rice cooking professionals, we organized and shaped each aspect one by one. In addition to the sales experience at previous events, selling at a department store will be a different experience. We hope this leads to even more practical learning for the high school students."
**■Future Outlook**
The Kaiken High School 3rd-year project is scheduled to conclude its sales activities in September 2026, but subsequent grades will take over the commercialization and sales activities through a similar process. Suishoan will continue to accompany them, developing the "student ideas x rice cooking professionals" model, which started in Kyoto, into a continuous industry-academia collaboration model.