Isak Toast Seoul National University Entrance Station Branch sells toast and sandwiches. It is directly in front of Exit 7 of Seoul National University Entrance Station, takes orders through a kiosk, and prepares them immediately after ordering. Customers may be waiting even late in the day, and a line can form at 10 p.m. Lines form at mealtimes and during weekday and weekend lunches, with waits of at least 10 minutes.