Wonjeu Coffee is a cafe near Children's Grand Park Station in Seoul that serves specialty coffee, sourdough brunch, and handmade desserts. Customers choose from four bean options, and those dining in can refill their americano or switch to decaf. The sourdough brunch comes with mushroom soup, tomato marinade, and cream cheese, and the shot is served separately so diners can pour it to their taste. The interior is quiet.