Kingseu Keopi 24si Kape is a cafe near an intersection toward Seongdae in Daehangno, Seoul, serving coffee and other drinks. Its coffee is strong, large sizes come in generous portions, and decaffeinated coffee is available. It operates 24 hours and has a spacious seating area suited to studying late at night. The restroom has an unpleasant smell, and its hygiene needs better management.