Gongcha Daehakro is a bubble tea shop on the second and third floors of a building directly in front of Exit 4 of Hyehwa Station. Customers order at a kiosk, typically taro bubble milk tea or green tea smoothie with added pearls. The shop uses both the second and third floors, and the air conditioning on the third floor is cool. Waiting 20 to 30 minutes to receive a drink can happen.