Oh I remember seeing this ages ago!
You're still writing it! That's great!
It's a fun read with a relatively unique storyline. Definitely would want to see how the story goes from here.
Yes by definition creating a manga is also a writing project, but having the art makes it more final, i.e. that's the actual output, not just a script to draw later.
Regarding your video on your patreon, it's quite difficult to read the text, not only the multi-colour font is a bit funny on the eyes (try black with a white outline instead?), but the dark lines in the background interfere with reading it. Just a point.
Regarding your art, there's a couple of things that might make your work a little more polished with not too much effort. One is the line colours - it looks like it's drawn in pencil? That's not an issue having a dark grey colour, but the speech text is a solid black which contrasts strangely. Either make the font a dark grey instead or post edit your images to increase the contrast and make the lines black.
You could also use a fine-liner pen to go over the lines, making them solid black, and then erase all the pencil, but that's a bit of an increase in workflow and effort.
Here's an example that I edited the levels of in GIMP.

I also noticed on a few panels that your original sketch is showing through - it hasn't been erased properly.
Here's an image I edited to make it a little more visible:

Sketching rough with a 2H pencil, and "inking" final lines with a 2B pencil, might help to make your work pop more, and keep the rough sketches from showing through. Sketching more lightly will also make it easier to erase mistakes.
Keep it up! producing a finished product is no mean feat, and you've completed 5 chapters already! You've definitely got what it takes to get better
