Shimada Shoten in Tokyo’s Edogawa Ward is the only company in Japan that sells the special hair oil used by sumo wrestlers. With its characteristic aroma, the oil is a dead giveaway that a sumo ...

But Kato, who goes by the name of Tokohachi as a sumo hairdresser, felt a little distraught when Hakuho demanded to know if he had “tied Endo’s hair up.” Tokohachi, 67, wondered why the ...