Bushōzan Kotarō (Japanese: 武将山 虎太郎; born 6 December 1995 as Kotaro Fujiwara (藤原 虎太郎, Fujiwara Kotarō)) is a Japanese professional sumo wrestler from Mito, Ibaraki. His debut in maezumō was in January 2014. His highest rank has been maegashira 12.
Source: “Bushōzan Kotarō”, English Wikipedia (CC BY-SA 4.0), excerpt
