In the past 6 months I've discovered some great brunch spots and just this week 2 new ones popped up.
My original favorite for brunch was Indigo in the HBC. I like the staff and the food is pretty good, but the service is not the best (food is often cold, or doesn't come at all) and I've now overdone that place and need new brunch. In some ways it feels like the dormitory cafeteria (with way better grub). Whenever I'm there I see someone I know. This is my regular local place to go when I don't feel like cooking. I'm lucky to have it, but I need variety.
A new cafe just opened half a block away from Indigo, called Habitat. They have organic teas, a chill atmosphere and mellow music to match. I dig their earthy toned interior with mismatched pieces of nicely designed furniture, and the menu is filled with exciting things I can't wait to explore. They have outdoor seating, but it's on the street which can be noisy at times. Habitat is brand new, so they have some work to do, but I'm looking forward to seeing how this place develops.
If I'm in the HBC area these days I walk up to Jule's Kitchen for her brunch. It's a bit pricey, about 10,000 won, but worth it. On top of that, she's totally lovely and her cakes are heavenly. Jule's Sandwich, a chicken salad with apples, is my favorite. I also recommend that you try the carrot cake, it'll rock your world. It's not often crowded so the food is made pretty quickly.
My all time favorite Hyehwa chill spot is Comfort Zone/The Living Room. Due to the size of my apartment, I quite literally made this bar my living room. It has a clientele of mostly Hyehwa locals, Sungkyunkwan University professors, international MBA students who live up the street, and ME! Until now I've felt like it's been my secret. I wanted Andy, the cute and friendly English-speaking owner, all to myself.
Their standard brunch plate has yummy potatoes, a couple strips of bacon, a bagel with jam and butter, some veggies, and eggs. I recommend the French toast.
See the comments for directions.