Responses

Punch drunk is an actual movie, I don't think it's a reference to the manhwa. I could identify movies: Punch Drunk, Trainspotting, Die Bad, Kids Return from the posters. I think the movies may be sources of inspiration for the author that influenced the story's vibes/themes bc I can't see a clear link between the plot summaries I've read but they all seem noir-ish or coming of age (kind of).
I can identify three of the six posters on the boxers wall, punch drunk (Punk Drunk Love), mystery skin (Mysterious Skin), and spotting train (Trainspotting). Can anyone tell me the other three please? And are your theories of their significance?