Tokitsukaze stable
He was born in Yahata Higashi ward. He made his professional debut in January 1962 at the age of just 14, joining Tokitsukaze stable. During his first year he also attended Ryogoku Junir High school to complete his compulsory education. His first stablemaster was the former "yokozuna" Futabayama. He initially fought under his own surname, Hatano, before adopting the "shikona" of Ōshio in 1969.