Hollys Coffee Busan Biff Square is a coffee shop in Biff Square in Nampo-dong, Busan, across from Busan Theater. It serves Americanos, hot chocolate, and cake, and the store is fairly large. The shop is visible directly from the market inside Biff Square, and the tables are packed closely together, with one men's restroom and one women's restroom. Napkins are the pull-out paper towels used in ordinary restaurants, and restroom cleanliness is lacking.