Is there a way to edit the Synopsis and Writer Guide line of a story you already have started? I can't seem to find a way to do that.
In the top right corner of chyoa main website there is a drop down menu where you can see a "My Stories" tab. If you click that, you'll see a list of your stories. Click the icon that looks like three dots at the top right of any story before clicking into it. You should see an option allowing you to edit the story, and find what you're looking for there. Hope it helps!
