Waiden Seongsu is a coffee shop in Seongsu, Seoul, that serves coffee and desserts. It brews coffee with acidity and floral notes, and the latte can be made with one of three beans. The gome butter scone uses only fermented gome butter and is sold the day it is made, and the financiers are produced and sold for one day only. Takeout, reservations, wireless internet, separate men's and women's restrooms, and parking are available.