Matdol Sondubu is a restaurant in Onsu-dong, Guro-gu, Seoul, located underground near Sungkonghoe University. It serves tofu dishes such as kimchi sondubu, haemul sondubu, and sundubu, along with mild cheonggukjang and spicy sundubu served as home-style meals, and the special menu includes bibimbap. The kitchen and serving are handled by elderly staff at this old neighborhood restaurant, which has had customers returning for over ten years. University students and office workers both eat there.