Gongcha Seoul National University of Science and Technology Branch is a cafe near Seoul National University of Science and Technology that sells milk tea and mango smoothies. Drinks can be customized with toppings such as pearls added to mango yogurt, Tropical Heart Crush, or green grape green tea. When orders pile up, drinks take 15 to 20 minutes to come out, and seating is on the spacious side. The men's restroom is outside the store, making it humid and hot to use.