Woo-sik thinks ‘man’ should be ‘manly’ in every ways. What he’s talking about, with his friends at a bar just tells us how often and seriously we discriminate against others out there; sexual discrimination, racial discrimination, treating waitresses so bad, homophobia, judging people by the way they look and education back ground, etc. In the end, all of his friends left him behind and he came over to a stranger saying “you know what I mean, ‘cause you a ‘man’!”