For crying out loud, stop bringing that crap up.
The outfits are nothing more than the uniforms students had in Japan in the 1920s. Yes, also in the 20s Japan was occupying Korea. No one is excusing Japan for actions taken during the occupation, but the clothes are nothing more than the uniforms for students at the time (Japanese students AND occupied Korean students).
I agree they should probably avoid selling the clothes on the Korean version of the game, but there's no disrespect or controversy about selling clothes similar to those worn by Japanese students in the 1920s.