It's a really rough watch. Primitive post production VFX with cheap cuts especially the blood spatters, the absolute horrors! It has to be cheaper if they opted for practical effects. If they were really on a tight budget then abandoning the post production VFX would have been the right move instead of making the drama looking cheap from the get go. Speaking of which, what on earth was that opening theme with thunder and water splashes effects. Real physical pain. The script, story, dialogue and writing in general was nothing but comical. Park Won Sang was the only highlight for me just for being there.