From Gwangsan Sageori in Suyu-dong, head toward Gangbuk Middle School to find Somunnan Jjajang Janchi Guksu, a noodle restaurant serving jjajangmyeon, janchi guksu noodles, udon, and jjampong. It also serves various Chinese dishes as drinking snacks until late. The restaurant has about three or four tables inside and is operated by one elderly man. It is not suitable for diners who are sensitive to hygiene.