Kopigaya is a cafeteria in Huam-dong, Seoul, reached by walking from the intersection in front of Yongsan High School toward Sookmyung Women's University Entrance. It sells coffee, tea, cookies, sandwiches and yogurt, with patbingsu made from house-made red bean paste and coconut powder, and an Einsteiner topped with a thick layer of house-made rich cream. There are outdoor tables and several indoor seats, pets are allowed, and the Wi-Fi is strong. Sunlight comes through the full-length windows and the interior is quiet, making it suitable for conversation.