Okinoumi Ayumi is a former Japanese professional sumo wrestler from Okinoshima, Shimane. He joined professional sumo in 2005, reaching the top division in 2010. He was runner-up in makuuchi three times in the January 2011, March 2013, and November 2017 tournaments, all with an 11–4 record. His highest rank was sekiwake, which he held for one tournament in March 2015 and then held again in November 2016. He has won four Fighting Spirit prizes, one prize for Outstanding Performance, and four gold stars for defeating yokozuna. He wrestled for Hakkaku stable. Upon his retirement, Okinoumi became a sumo coach under the name of Kimigahama.

Hokutoumi Nobuyoshi is a Japanese former professional sumo wrestler from Hokkaidō. He was the sport's 61st yokozuna and won eight top division championships. He wrestled for Kokonoe stable, as did Chiyonofuji, and the two were the first yokozuna stablemates to take part in a play-off for the championship, in 1989. After a number of injury problems he retired in 1992, and is now the head coach of Hakkaku stable. In November 2015 he was appointed chairman of the Japan Sumo Association, following the death of Kitanoumi, initially to serve until the end of March 2016. He was then elected as head for a full term by his fellow board members in a vote held in March 2016. He was reappointed to a full term as chairman four times, most recently in 2024.