Masami Inahata
- HEIGHT
- 182cm
- WEIGHT
- 95kg
- BIRTH DATE
- 2005.7.5
- BIRTH PLACE
- Toyonaka City, Osaka
- SPECIAL MOVE
- Double-arm Suplex, Quebradora con Giro
He played baseball in his student years and has the distinction of competing at Koshien in the National High School Baseball Invitational Tournament. He debuted under the ring name "Thunder Seiki" at the JTO Korakuen Hall event in July 2024, and by July 2025—just one year after his debut—he became the 11th KING of JTO Champion. In January 2026, he announced his "graduation" from JTO. Amidst much speculation regarding his next move, he made a surprise appearance at the DDT Korakuen Hall event in February. His official affiliation with DDT was announced on March 22. Additionally, Katsumi Inahata (formerly Fire Katsumi) of Pro-Wrestling NOAH is his older brother.