It is a story set in the shared universe of Parasyte. It is not exactly a retelling or adaptation. You can call it a spin-off if you like. The series actually hinted that right from E01.
Think of it this way, the Parasyte universe clearly explained that the parasytes landed in various locations around the world. This story, set in Korea, is simply one of those locations. For the first time, we are seeing the situation in Korea not told before.
That's what a shared universe is. So it isn't proper to compare it to the story set in Japan because that is just another story in the shared universe of Parasyte.
Have you ever wondered what it was like in the other locations where the Parasytes landed? They can make a spin-off for those locations.
Shout by BretonusBlockedParent2024-04-05T14:50:05Z
Doesn't even come even close to the movie