On the other hand, Silverman affirmed it shows gender stereotypes and "some of the more misogynist ideals of 1960s Japan," as exemplified by the fact her boy's heart gives her physical strength. Mautner also found "some" sexism in the work, given as an example the fact she loses her swordsmanship ability when she is without her boy's heart. Drazen and Mautner stressed that the manga had broken with some gender expectations but did not abandon them, as Sapphire marries Franz in the end. Power stated that by this attitude Sapphire shows "her true happiness comes from being in a traditional female role." For Paul Gravett, it demonstrated she "was no feminist rebel after all" and he wrote in "Manga: Sixty Years of Japanese Comics" that Tezuka "created an exquisite world of indecision." Power concluded that "The image of Sapphire must have sent complex, if not conflicting, messages" to readers. This conflicts led Brophy to say "It may be more accurate to depict her characterization as schizophrenic rather than androgynous".