Júlio Yoshinobu Shimamoto, born in Borborema, São Paulo, and came from a family of Japanese samurai aristocrats. He got his interest in comics through translations of American newspaper and comic books stories. He did his first works in the late 1950s, through La Selva, and Continental, before he was hired by Mauricio De Sousa to draw 'O Gaúcho' in Folha de S. Paulo in 1964-65. In 1972, he went to Rio de Janeiro, where he worked for the advertising agency Caio Domingues e Associados. He eventually returned to comics, and made horror and erotic stories for the publishers Bloch, Vecchi and Grafipar. In the 1980s and 1990s, he was back at advertising and storyboard art, but from 1995, he drew comics for magazines like Metal Pesado, Fêmea Feroz and HQ - Revista do Quadrinho Brasileiro. He additionally launched Volúpia at Opera Graphica.