An interview with Ryunosuke Hironaka, the eldest son of former UFC fighter Kuniyoshi Hironaka, has been published in "Jiu Jitsu NERD".
- 3 days ago
- 1 min read
In the 35th installment of " Jiu Jitsu Next Generation ~Eggs of Superheroes~ ," an interview project supported by Takashi Shimada of Yudetamago, the creator of "Kinnikuman," Ryunosuke Hironaka, a wrestler belonging to Master Japan Fukuoka, makes an appearance.

Ryunosuke's father is Kuniyoshi Hironaka, the representative of Master Japan, a third-degree black belt in Brazilian Jiu-Jitsu, and a former UFC fighter and the 11th Shooto World Welterweight Champion.
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Following in his footsteps, Ryunosuke also started practicing Brazilian Jiu-Jitsu at the age of five.
In recent years, his talent has steadily blossomed, and he has won numerous major tournaments in Kyushu, including ASJJF South Japan and ASJJF Fukuoka International Jiu-Jitsu Championships. He is gaining prominence as one of Kyushu's leading young jiu-jitsu competitors, and attention is now focused on his future challenge in national-level tournaments held in Tokyo.
profile
Ryunosuke Hironaka (Master Japan Fukuoka) Born May 19, 2016 (10 years old)
Main battle record
2026 ASJJF Fukuoka International Jiu-Jitsu Championship Kids 4th Grade Heavyweight Champion
2026 The 4th Reversal Cup in Fukuoka Kids 4th Grade Middleweight Champion
2025 ASJJF South Japan Jiu Jitsu Championship Kids 4th Grade Middleweight Champion



