In Seongsu: Olive Young Seongsu Station Store (91 Achasan-ro), 10am–10:30pm;

Olive Young N Seongsu (13 Yeonmujang 7-gil), 10am–10pm; and Seongsu Yeonbang Store (14 Seongsui-ro 14-gil), open from 9:30am. 플라이밀 Protein Bar Crunch (40g) comes in dark or white chocolate, with 13,007 reviews. Shopping early? Head to the Yeonbang store.