琵琶丸, Biwa Maru
Biwamaru sometimes Biwa Maru is a blind itinerant acupuncture doctor who wanders around Japan curing all sorts of ailments with miraculous speed. He is extremely disheveled in appearance dressed in rags and walking with a twisted stick as a cane and a rough bundle on his back. Biwamaru is effective like Black Jack an unlicensed doctor since his practices are considered to be quackery by the medical establishment while Biwamaru considers it barbaric to cut open a patient to cure them. This as with Dr. Kiriko Biwamaru is another nemesis who is too similar to Black Jack for the two to forgive their differences. Biwamaru also features in Tezukas bestknown samurai manga Dororo. Notably Biwamaru also appeared in Dororo as a blind musician and mastersswordsman. The crippled samurai Hyakkumaru widely acknowledged as a prototype of Black Jack encountered Biwamaru here and became his student in swordfighting an interesting reversal of his role in Black Jack. Source: