Gajusun Coffee is a roastery cafe in Ara-dong, Jeju, serving bean coffee and desserts. Hand drip coffee is brewed in front of customers, alongside desserts such as Levain cookies, madeleines, and canelés. The coffee omakase runs by reservation, and the barista explains the coffee. Drinks other than coffee, including omija tea and omija cafe latte, can also be ordered.