友綱部屋
Asahikuni stayed in the sumo world as an elder under the name of Ōshima Oyakata. In 1980 he established Ōshima stable, despite strong opposition from his old stable boss Tatsunami, who did not want him to break away from the stable even though Asahikuni did not take any high ranking wrestlers with him. Ōshima stable eventually produced Asahifuji, who reached the "yokozuna" rank in 1990, and in 1992 Ōshima became the first stablemaster to recruit Mongolians, with six joining for the March 1992 tournament. Two of them, Kyokushūzan and Kyokutenhō, reached the top division, rising to "komusubi" and "sekiwake" respectively. In all Ōshima produced ten "sekitori", including "komusubi" Kyokudozan and Asahiyutaka. He also worked as a judge of tournament bouts and was on the Japan Sumo Association's board of directors until 2010 when he lost an election to Takanohana. Upon reaching the mandatory retirement age of 65 in April 2012 Ōshima stable was dissolved with its wrestlers moving to Tomozuna stable. Kyokutenhō, who had once been considered a future head of Ōshima stable, instead became head of Tomozuna stable in 2017.