Changgyeonggung 150 is a Japanese-style tonkatsu restaurant near Changgyeonggung in Jongno-gu, Seoul, serving tonkatsu and curry. Its signature dish is tonkatsu curry, the breading is crisp, and the curry and rice come with unlimited refills. At lunchtime there are no seats or a wait, and because the chef works alone, there can be a wait before the food arrives. The space is small, and the cheese tonkatsu is heavy enough that eating a large amount is difficult.