Lotteria

Lotteria Hongdae is an unmanned fast-food restaurant in Seoul that sells burgers and set menus, located in front of Exit 1 of Hongdae Station. It offers a dedicated menu such as the Hongdae Burger and operates with kiosks and a self-service drink bar. When an order number appears on the display board, customers scan the barcode on their receipt, knock on the pickup box, and receive their food. No staff are visible, so the cooking process cannot be observed.