In Hapjeong, my favorite cafe is the Chulgo-un Book/Cafe. It's a quiet little cafe on the second floor. The coffee is ok. They have beer and wine, but the reason I go there is for the tranquil, bookish, artsy environment. This is where I go when I need to step back from it all and do some writing. Oh, and they have tons of books, so I like to go and browse for new ideas.
It's out Hapjeong Exit 5 and walk down the street adjacent to the main road. It's about two blocks down.
Open from Noon-Midnight