Kiyoshi Tamura is a Japanese retired professional wrestler and mixed martial artist. Once a student of legendary professional wrestlers Billy Robinson, Lou Thesz and Akira Maeda, Tamura was known for his skills in catch wrestling and is considered to be one of the greatest shoot wrestlers of all time. Competing exclusively in shoot style wrestling, Tamura began his career with UWF Newborn and later joined its successor group UWF International before transitioning to mixed martial arts.

Okayama is the capital city of Okayama Prefecture in the Chūgoku region of Japan. The Okayama metropolitan area, centered around the city, has the largest urban employment zone in the Chugoku region of western Japan. The city was founded on June 1, 1889. As of February 2023, the city has an estimated population of 700,940 and a population density of 890 persons per km2. The total area is 789.95 square kilometres.