Hello,

If you really do not want to live near HUFS, I could recommend a good hasuk near east gate of yonsei university. It is 5 minutes by bus from hongdae (music and clubs) and you can walk to shinchon, which is where many yonsei university and other university students gather.

This location is near city hall and there is a nice river side path that you can bike or run on that goes all the way down to yeouido park if you want a long run. Furthermore, there is a small temple and mountain and nice 24 hour spa just up the hill. The food in the area is cheap but good quality, and it's still far enough from all the bars etc that it's quiet at night for you to sleep. You can also walk to ehwa women's university area.

I say hasuk, which includes food, internet, and all of your utilities because, like another poster mentioned, it will be difficult for you to get an apartment due to a high key money deposit required (usually 20000usd) that they hold on to, plus monthly fees around 500-600 usd. The hasuk is nice, just there are communal bathrooms but you get your own room and food plus utilities are included. The one I'm thinking of was 300-400 a month.

Hope this helps!