Btw, the original story is called "Dream Maker" (드림 메이커). I did found a post saying something about it being publish on Ridi Books, but it's not available there anymore. I don't know why. Perhaps something about losing the right to distribute or something like that. All I found was a post from 2018 about reading chapter 1, but nothing else.
The link of the post:
https://ridibooks.com/event/8141?srsltid=AfmBOopjyv804CRamUh8NG_k2XKA_5Tq3BCdnYQztW3rp4SWZu6wce28
This post also directs you to a page that says the story has been removed and is no longer available due to copyright issues.
Link: https://ridibooks.com/event/8549?srsltid=AfmBOooGYaygzqwqmOPtiNMdUy59K_sqw6QMtV2gXbEUsxuqwXAnloYU

I read the first two chapters and didn't understand anything. Then I realized that this is a side story from a novel that was never adapted into manhwa. I even looked for the novel to read, but it was released almost ten years ago and has never been translated anywhere. They don't even exist on pirate websites, even if just in Korean. Even this manhwa side story is 5 years old. It was published in 2021 and only now has someone translated it simply because it's by the artist of Semantic Error. Otherwise we would never heard of it. I honestly won't read it then. There's no point in reading the whole story for me. What's a shame. If it's been that long, then the complete story will probably never be adapted or translated, which is a shame.