RISE181 event takes place on August 31, 2024, at Korakuen Hall in Tokyo, Japan. This kickboxing showcase features Koki Osaki defending his Bantamweight (-55kg) title against Ryunosuke Omori in the main event. Other fighters include Tenshi Matsumoto vs. JIN, SEIDO vs. Katsuji, and Kensei Kondo vs. Ryuya Koide across the card. Additional bouts highlight Momoka vs. Runa Okumura and Kenji Noguchi vs. Genki Morimoto.

"Koki Osaki vs. Ryunosuke Omori"