Ooof. I’m guessing 40-50 pages of this script were just “the main character continues running and/or crying.” The few decisions she makes are all groaners.
This movie definitely has Things To Say about homelessness and class in Korea, but it does not have Characters To Say Them.
You got me with that plot twist though! It further undermined the characters but I can’t deny my surprise. (not an endorsement of that hamfisted turn, though)