Next and Previous buttons are pretty much the standard. If you want
to do something different, you can, but you should look into the best way to do it. Next and Previous buttons are going to be expected by most webcomic readers, so if you're going to try a different setup, you want to make sure you aren't scaring people away.
If it helps, I think your site looks better with just one story on each page.
You may also want to create an archive page that lists all your comics. If someone's looking for a specific comic they like, your current setup either forces them to bookmark it or go through each page until they find it. Not very friendly.