Cheonsang Gaok is a bakery cafe on the third floor of Seongsu Yeonbang in Seongsu, Seoul. It serves croissants, berry cake, tarts, and cookies, along with pepper honey coffee and roasted coffee. The space has a botanical concept with red brick visible through full-length windows, and the shop sits on the rooftop, reached by elevator. Customers place bread on a tray, and an AI system recognizes the items and displays the payment amount, while the ordering machine supports traditional Chinese.