Sundae Ilbeonji is an old restaurant in Mangwon, Seoul, serving gopchang sundae and sundae guk. The sundae guk comes with large pieces of gopchang sundae, head meat, perilla leaf, and perilla seed powder. The restaurant has appeared on Saenghwal ui Dalin, Wednesday Food Talk, and Tto Gan Jip. The sundae portion is about two pieces, which is small.