Bus - You need to have one transfer, but the total distance is 4 km so that it will take only about 15 minutes.
Here is the easy to follow Bus information
First, you will need to take bus from Jongam Police Bus stop (Bus Stop Number 8150) - five minute from the studio: Bus 7211 and 1213 to Korea University bus stop (Bus Stop Number 6174) -- travel time expected - three stops in between and 5 minutes.
Southbound to Hankuk University of Foreign Studies (외국어대학교) bus stop (Bus Stop Number 6127) or Kyunghee High School (경희중고) bus stop (Bus Stop Number 6125) from Korea University bus stop (Bus stop number 6175) : Bus number 273 - 6 bus stops in between and each stop takes about 1-2 minutes – Total travel time expected 10 minutes.
Northbound from Hankuk University of Foreign Studies (외국어대학교) bus stop (Bus Stop Number 6126) or Kyunghee High School (경희중고) bus stop (Bus Stop Number 6124) to Korea University bus stop (Bus stop number 9147) : Bus number 120 - 6 bus stops in between and each stop takes about 1-2 minutes – Total travel time expected 10 minutes.