This photo captures the drone show held at the 59th Otaru Ushio Matsuri Grand Fireworks Festival in 2025.
〜 A Summer Moment Created by a Symphony of Voices and Approximately 1,300 Drones 〜
Redcliff Inc. (Headquarters: Minato-ku, Tokyo; Representative Director: Komei Sasaki; hereinafter “Redcliff”), a leading company in drone show planning and operation, is pleased to announce that it will once again direct and operate the participant-interactive drone shows for the “Genki Hatsuratsu! Ozora Daigassho 2026” project. This project is presented by Otsuka Pharmaceutical Co., Ltd. (Headquarters: Tokyo) for its carbonated nutritional beverage, “Oronamin C Drink” (hereinafter “Oronamin C”), following Redcliff’s successful contribution to the project last year.
The “Genki Hatsuratsu! Ozora Daigassho” (Sing-Along Under the Big Sky) is a project born from the desire to “bring energy to all of Japan,” inspired by Oronamin C’s iconic catchphrase, “Genki Hatsuratsu!” (Full of Vitality!). Originally launched in 2025 as a special project to commemorate the 60th anniversary of Oronamin C, the event was held at five venues nationwide, including Hokkaido, Akita, Saitama, Kumamoto, and Tokushima. At each venue, visitors held Oronamin C in hand while looking up at the sheet music drawn in the night sky, blending their voices to create a beautiful harmony of song and light.
In 2026, the project will expand to four venues across Japan: Shizuoka, Tokyo, Oita, and Osaka. Through this interactive drone show, Redcliff will craft a unique and immersive space built together with the audience.
During the show, approximately 1,300 drones will illuminate the night sky with lyrics, music staves, and notes shaped like Oronamin C bottles. Looking up at the illuminated sheet music, attendees will sing along in unison to the legendary song “Ai wa Katsu” (Love Wins) by singer-songwriter KAN. This interactive program creates a powerful sense of unity across the entire fireworks festival venue, seamlessly blending choral voices with the brilliant light choreography of the drones.
At the venues, chilled Oronamin C, original paper fans, and glow sticks are scheduled to be distributed (available while supplies last). Along with the drone show, attendees can enjoy a quintessential summer experience—singing, laughing, and looking up at the night sky together.
Whether you participated last year or are joining for the first time, we look forward to delivering an unforgettable summer memory for everyone.
Overview of “Oronamin C: Genki Hatsuratsu! Ozora Daigassho 2026”
Official Website : https://www.otsuka.co.jp/orc/daigassyo/
Performance Schedule :
| Date | Location (City / Prefecture) | Fireworks Festival | Scheduled Drone Show Time |
| July 18 (Sat), 2026 | Shizuoka City, Shizuoka | The 73rd Abekawa Fireworks Festival | Around 19:30 |
| July 28 (Tue), 2026 | Katsushika Ward, Tokyo | The 60th Katsushika Nouryō Fireworks Festival | Around 19:50 |
| August 29 (Sat), 2026 | Oita City, Oita | Oita “Yume” Fireworks 2026 | Around 19:15 |
| September 20 (Sun), 2026 | Hirakata City & Takatsuki City, Osaka | The 5th Suito Kurawanka Fireworks Festival | Around 19:10 |
Note 1: At all venues, the drone show may be canceled if drone flight is deemed difficult due to weather conditions or other factors.
Note 2: Please check the official website of each fireworks festival for viewing guides and transportation access.
Note 3: Chilled Oronamin C bottles, original paper fans, and glow sticks are limited to 10,000 units per venue and will be distributed on a first-come, first-served basis while supplies last.
About Oronamin C Drink
https://www.otsuka.co.jp/orc/product
Oronamin C Drink contains essential vitamins (including Vitamin C, $B_2$, and $B_6$), which are part of the five major nutrients needed for a healthy body. Its iconic yellow color is actually the natural color of Vitamin $B_2$. Packaged in a convenient 120ml bottle, it is the perfect single-serving size that is easy and refreshing to drink for everyone—from young children to seniors.
