Gu Eun-sun Coffee 9 Jeju Branch is a cafe behind the Jeju Fire Station that sells coffee it roasts itself, drinks, sandwiches, and desserts. It brews the hand-drip coffee of the day and the Type A americano from beans it roasts in-house. The large hall has group seating and desks for laptops, along with Wi-Fi. Wide spacing between tables makes it a space for reading groups or quiet conversation.