Once upon a time even Naoki Urasawa was a beginner. Born in 1960, Urasawa debuted as a professional mangaka at age 23, when the market for seinen (men's) manga was booming. But before he became known as the creator of megahit seinen story manga like Monster and 20th Century Boys, he drew stories for other authors. One series was the 1988 detective manga (okay, insurance investigator manga) Master Keaton, written by Hokusei Katsushika. Another was the 1985 manga Pineapple Army, written by Kazuya Kudô, Urasawa's first manga ever translated into English.