Likes:
lighting even during the darker scenes was okay.
acting was decent.
fx were okay.
Music and sound effects done well.

Dislikes:
Writing:
Plot holes.
No punishment for the two guys who controlled the "finding girls". Bullying had no consequences either. No growth for the main actor and no true conclusion either. Sloppy ending, seemed very rushed compared to the slow beginning. The crying of Se Jun after what he did, seems dumb, because he had no problem doing what he did before the bathtub scene.
Production:
Shaking camera, especially with close ups, they should've used a film stabilizer.
Pacing was extra slow in the beginning, then rushed at the end of the movie.

Overall:
There was no bromance as it is tagged that. What the male leads had was barely friendship even. People read way too much into the two male leads calling it boy love. Not at all. They used each other; one for money, the other to get involved with the uncle that's never shown. Bullying, violence and triggering content that due to the rushed ending, doesn't give a satisfying resolution or conclusion. Even if you like graphic violence, this is on the low end of the decent movie spectrum. I don't recommend wasting your time watching this. No scene grabbing parts, that make you want to watch it again.