Gowooseongsu is a sotbap restaurant on Seongsu Cafe Street. It serves steak sotbap, eel sotbap, and beef bulgogi sotbap, and you can add water to leftover rice to make sungnyung. Register your party size and phone number at the device on the first floor to receive a KakaoTalk notification before entering. The rice usually takes 5–10 minutes, and waits during mealtimes can last 50 minutes to an hour.