I found a hidden tteokbokki gem near the office. The broth is rich and the rice cakes are chewy. They offer three levels of spiciness, so you can choose according to your preference. My recommended menu is the cheese tteokbokki + fried food set. The price is also reasonable at 8,000 won.
The location is a 5-minute walk from Exit 11 of Gangnam Station. Everyone should give it a try lol.