Penny Coffee Roasters is a three-floor cafe in a alley near exits 8 and 10 of Sadang Station in Seoul, serving coffee and tiramisu. Its signature items are filter coffee made with various beans and a flower americano with a floral aroma. Inside the three-floor building, wood and plants are arranged together, and each floor has a different atmosphere. Because it sits deep in the alley, the storefront is not easily visible from outside.