Abacus Wizard
Black Jack remembers when he operated on a boy named Eiji, a genius at the abacus who couldn't move his fingers and used his tongue to operate the abacus.Black Jack remembers when he operated on a boy named Eiji, a genius at the abacus who couldn't move his fingers and used his tongue to operate the abacus.Black Jack remembers when he operated on a boy named Eiji, a genius at the abacus who couldn't move his fingers and used his tongue to operate the abacus.