What's up Sourcecode?
I used to live in Korea, if you have time I also wrote about it
here.
I posted more recently, but as I did in my post, I concede that the best intel on Korea is in fact, in this datasheet.
In general, no. Korean women are not very friendly to the brothers. But it is possible. Booshala has the right idea. Most of the locals who would be interested or curious make it a point to visit those parts of Seoul, Itaewon especially. Gooning-up probably worked here last in the late 90s, if at all. Breaking the stereotypes that they see in movies and hip hop videos will do nothing but improve your odds.
Before committing to an all nighter in Seoul, try to hang out in the evening to get a feel for the places you like to go and catch the last railroad back down to Pyeongtaek from Yongsan or Seoul station around 11pm. The last subway going down that far will be a little after 9 pm. It's cheaper, but takes twice as long- it might be the better option if you aren’t near Pyeongtaek station itself (adjacent stations are far apart in that area.) Any questions about transport logistics in Korea let me know.
I can't really comment on the nightlife in that city itself though. I know there's a very small street walking distance from Songtan station right in front of the base. I think they even called it “Little Itaewon.” I think Dash talked about it on some data-sheets he threw up.
One of the worst things about being on the pull here is having not only the culture, but the transport system and ratios working against you, and this will happen if you're out past the last train. Waiting until after 5am for the rails to start running again, and opening girls who have already been opened poorly by guys who grossly outnumber them is no fun. Catch them in the same venues early instead. Itaewon is lacking in motels and or dvd rooms to pull so I say go for a number or Kakao-talk and set up a day two elsewhere and try to bounce to those locations then. I generally don't do anything beyond light kino in the first meeting anyway. I know for sure she's keen if I get her to come out on a day two.
Hongdae has motels and dvd rooms but the motels will probably start at 50K won and up. I say first do the private dvd room to escalate- you still have a bit of plausible deniability to work with as well. You're a newbie in Korea so play it up and act as if you didn't know what young people REALLY do in those private dvd rooms.
You can go solo but if a wing is available use him. I'd volunteer but I finally left the country earlier this year.
Beyond the language barrier, the odd stare and some people refusing to sit next to you on the subway, I don't think you're going to have any trouble with the general public out and about, well- nothing that white foreigners wouldn't also have to deal with.
I can't stand K-Pop, and the music scene here in general is lacking- but here's a video that always makes me smile to get in the spirit.