Thread:Harostar/@comment-25655388-20160906141129/@comment-10733658-20160906194506

Like Scarecrow said, the one-shot was merely the original submission that Ishida created for the series. Basically, a sampling to get the magazine interested. From there, he developed a very different story that ended up being published.

It's fairly common for creators, especially new ones without any prior published works, to submit a sample story. It basically just shows off their talents and ideas, and from there the company works with them to develop a real work for publishing.