ALisAnimeLover's manga / #Prison(2)

This is a promotional manga for the novel. You can read the novel here: https://experimentaltranslations.com/2019/02/14/slow-prison-life-ch-1/ (I have yet to read it to see where the manga left off)

I'm getting the feeling... that this one shot was meant to be a pilot but didn't get serialized. Because the ending was perfectly cut off to have enough story for a one shot but enough space to continue. Makes me wonder if square enix has the same system as shonen jump (SJ system is to have mangakas submit a storyboard. If it passes, they have to submit a one shot pilot which will be compiled and be published then voted on by readers. If it wins (I think top 5 or smth?), then it gets serialized. And there's a cyclic voting if the manga is still popular enough to continue getting published. If it isn't, the mangaka is given a few chapters left to wrap up their story - aka axed. Idk if SJ still uses the same system though.)