Moonlight Mask
Tetsujin 28-go debuted as a manga in 1956 and was immediately popular with young boys. That series featured a boy who could control a gigantic robot and this was reflected in the series as Kazuo could control the reprogrammed robot monster Marine Kong and used it to battle the Z-Gang. Also Moonlight Mask was an influence. That series, which debuted in 1958, featured a masked hero that thwarted evil. Some of the latter episodes of Marine Kong featured a female scientist named Takamiya Hisako who could transform into the "Red Angel' a masked super heroine in the same vain as Moonlight Mask. Red Angel was the first transformation based super heroine on Japanese TV.