Hello @Illusion of Terra ! Some situations are different. Depending on the project, a manga writer could also be the artist. There could be multiple writers that assist the main writer with certain story elements. There could be multiple artists working on the same project while one writer is handling the "blueprint" as a whole. Typically, there's only one main writer and one main artist. My job as a manga writer is to not only create the story but sketch up character designs , the world the story takes place in (the setting, as you've mentioned), create rough drafts of each page, and to put it simply, anything you see in the final stages of a manga project comes from the ol' noodle . But ultimately, writers are required to have some kind of drawing skills in the professional world. I personally enjoy working with other artists who are MUCH MUCH more talented in the art department. Plus, a lot of work gets done faster when you're with a team. 2 heads are better than 1, right? You'll probably never see someone doing everything by themselves in a creative project like this especially when you have a schedule to maintain. Trust me, Deadlines are a .
Hahaha, hope this answers your question. Thanks for chatting!