Gangbyeon Station, Techno Mart

One of the busiest stations in Seoul. You can get different cities bus from here. The infrastructure of the station is nice. Staffs are so friendly and they usually speak English. Its very crowded place but very clean! You can order your ticket by Kiosk or in counters. Everything is going so fast here. You'll find Lotteria and Daiso and some other famous shops here.

Decent subway station. No food options here but Technomart mall is right next door.

There are a lot of cloth wagons in the vicinity.

There is an express bus terminal and Techno Mart in front and back of Gangbyeon Station, so transportation seems to be convenient, but it is not surprising. If you move a few more stops towards Konkuk Seongsu, there are many things to see and eat, and transportation is smooth.