Byeolmi Son Kalguksu is a kalguksu shop in Mandae Market in Buk-gu, Busan, serving hobak son kalguksu and naeng kalguksu. The hobak son kalguksu, the signature dish, is served with chewy noodles. In summer, naeng kalguksu is also available to order. Opinions on the kkakdugi differ depending on whether it was made before or after the owner changed.