In his latest comic "Cyberpunk: Peach John," manga author Rootport imagines the Japanese folklore hero Momotaro -- who is said to have been born from a giant peach -- living in a dystopian future. But while the writer created the storyline and dialogue, his sci-fi-inspired imagery was produced entirely by artificial intelligence. In fact, the 37-year-old has never drawn a comic by hand. The publishing house behind the work, Shinchosha, believes that "Cyberpunk: Peach John" is the world's first complete AI manga work. On sale in Japan from Thursday, it was illustrated using Midjourney, an online image generator that can produce detailed pictures based on users' prompts.