Masahiko Koseki, a judo master, gets in several fights as a result of protecting a young woman. Despite his success, Koseki is expelled from his judo school because of his propensity for street fighting. He goes to work for a gangster named Joji, but when he realizes that Joji is mixed up in the slave trade, Koseki helps the police in their attempts to foil Joji.
as Masahiko Koseki
as Masazumi Asaji
as Shiro Katahara
as Shizue Amaji
as Kikuko Kamo
as Oyo
as Shunsuke Iba
as Hachiro Iba
as Kotetsu
as Joji the coolie procurer
