Raunji Ekseu 24h Sangam DMCyeokjeom is a 24-hour unmanned café beside Sangam DMC Station in Seoul, serving coffee, bakery items, and desserts. A robot barista makes coffees such as Americano, and the bakery selection includes butter bun and mocha bun. You can order in advance through the app for pickup and use a window table with a laptop. In the morning, the butter bun is served warm and moist, and daylight enters the café.