Board Thread:Staff - Bureaucrat, Admin, Moderator.../@comment-28010522-20170515002300/@comment-28010522-20170521222555

here is a decent article related with Pure Blood hosted at Wikipedia, Eugenics in Japan

all in all, there are issues and sub-issues related with the term, "pure blood." what is certain is, "(once again) Toriyama has left us with no explanation." at least nothing official that explicitly stated/written/expressed by Toriyama himself.