None....
Well, you see, I had a buffer before. Or rather I was working on one when I basically crashed my computer and I was forced to reinstall Windows 10, which caused 2 months worth of comic pages to disappear. I managed to schedule the prologue so it's pretty much the only one of the three episodes I had ready that survived my fucking-over-my-computer.
I still have the outline of the entire story, and thank god because it took me like 4 months to finish outlining 55 episodes, but big oof anyways.
What makes it easier to update is that there isn't really a solid update schedule, I just try to update every two weeks. When I finish the first chapter I'll actually make a buffer, and I'll also make sure I won't wreck my computer in the process.