MPLAYGROUND Seongsu Store is a three-floor clothing mall in Seongsu that sells women's and men's clothing along with hats, glasses, sunglasses, belts, and bags. New items in styles ranging from basic T-shirts to vacation and daily looks arrive every week. Each floor has a fitting room and face covers are available, while the checkout counter is in one place on the third floor. During busy hours, the line at the checkout counter can get long.