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.

To create the panels, Tokyo-based Rootport entered a string of text descriptions, which he then refined using trial and error, to create images that matched his storyline.

Source: https://edition.cnn.com/style/article/japan-first-ai-generated-manga-art-intl-hnk/index.html