Hi, mind if I step in for a minute? I've read the posts, your story, and your responses, so I hope I got a good idea of the situation.
Before I came on tapas a creator, I have been a reader for a way longer time. I've read novels and comics and not just on tapas. Also, read on Webtoon and even Wattpad (which I do not recommend). I have read my fair share of works and here is my opinion:
I understand that you need your time to explain the story, introduce the main characters and all, but here's the thing: readers won't give you that time. Myself included. No matter if it's part of the prologue or not, if it is lengthy and doesn't "hook" the readers, they will drop it. I trust you know what you're doing, it's quite interesting (your story) but I look at it from a writer's point of view. Not the reader's view.
What I see (as a reader) are pictures and a bunch of letters and words. When I (as a reader) read a story, I want to know what it is about. Immediately. Maybe if I'm in the correct mood I will give you two or three more chapters, but if I don't know it by then, I will drop it. Simple as that. Stupid, frustrating but there is nothing you can do about it. No one can, unfortunately...
Now, here's my idea on how to help you.
Of course, I don't know what kind of story it will be, but if I'm correct, the further you get into the story, the better readers will understand, because more information will be given. So, maybe (hopefully) it gets better you upload more chapters. You can even take a break to build up a buffer if you need it.
Second, you can also ask the readers in the description of your comic something like: Yo, I know this seems lengthy at first, but I promise it's a good story. Or something similar. Whatever you like.
I have done this in my novel where I break the 4th wall. People were often confused and were like what's going on, so I said in my description: Disclaimer: High levels of sassiness and 4th wall breaking. Read at your own risk! Make it part of your story. By doing this, you prepare the readers already for what is to come.
So, to summarize:
1. Add more chapters. Take a break if needed!
2. Add a sentence to your description, informing and preparing the readers for what's to come.
I hope this helps! And good luck on here!