While men still set the rules of a patriarchal power structure in Korean society, it is women who control and dominate the sartorial conversation as it has to do with gender rules, roles, and the nature in which they are performed. Women define the rules of fashion and beauty's semiotic grammar so completely that it is no surprise, at the sartorially serious, extreme end of the spectrum, to see prettified Korean men wearing makeup, feminine colors, and even in this case, white fishnet stockings, and it make a certain kind of sense here. He's not cross dressing, e.g. breaking cisgender role norms. He just looks in place here, i.e. very dressed up for fashion week.