“OTODAMA – Onsensoul” is a Japanese rock festival run by the Kansai promoter Shimizu Onsen, held continuously since 2005. The venue is Izumiotsu Phoenix in Osaka, known for its open, seaside setting. Playing on the words “onsen” (hot spring) and “onsen” (sound spring), the grounds feature hot-spring-inspired touches throughout, and its unique worldbuilding—incorporating different motifs each year—is part of the appeal. In May 2026, it will take place over two days during Golden Week.

“OTODAMA – Onsensoul” is a Japanese rock festival run by the Kansai promoter Shimizu Onsen, held continuously since 2005. The venue is Izumiotsu Phoenix in Osaka, known for its open, seaside setting. Playing on the words “onsen” (hot spring) and “onsen” (sound spring), the grounds feature hot-spring-inspired touches throughout, and its unique worldbuilding—incorporating different motifs each year—is part of the appeal. In May 2026, it will take place over two days during Golden Week.