Adult themes in manga have existed since the 1940s, but some of these depictions were more realistic than the cartoon-cute characters popularized by Tezuka. Early well-known ""ero-gekiga"" magazines were "Ero Mangatropa" (1973), "Erogenica" (1975), and "Alice" (1977). The distinct shift in the style of Japanese pornographic comics from realistic to cartoon-cute characters is accredited to Hideo Azuma, "The Father of Lolicon". In 1979, he penned "", which offered the first depictions of sexual acts between cute, unrealistic Tezuka-style characters. This would start a pornographic manga movement. The lolicon boom of the 1980s saw the rise of magazines such as the anthologies "Lemon People" and "Petit Apple Pie". As the lolicon boom waned in the mid-1980s, the dominant form of representation for female characters became "baby faced and big chested" women.