Tamakasuga Ryōji is a former sumo wrestler from Seiyo, Ehime Prefecture, Japan. A former amateur sumo champion, he made his professional debut in 1994 and reached a highest rank of sekiwake in 1997. He fought in the top makuuchi division for twelve years, won five special prizes and earned seven gold stars for defeating yokozuna. He retired in 2008 and is now a sumo coach. In February 2010 he took over the running of Kataonami stable.

Chuo University , commonly referred to as Chuo (中央) or Chu-Dai (中大), is a private research university in Hachioji, Tokyo, Japan. Founded in 1885 as Igirisu Hōritsu Gakkō, Chuo is one of the oldest and most prestigious institutions in the country. The university operates four campuses in Tokyo: the largest in Hachiōji, one in Bunkyō, and two others in Shinjuku. Chuo is organized into six faculties, ten graduate schools, and nine research institutes. There are also four affiliated high schools and two affiliated junior high schools.