Oncheon Son Kalguksu Jjukkumi Main Branch is a restaurant near Yuseong Oncheon in Daejeon. It serves kalguksu containing dongjuk clams together with jjukkumi bokkeum, and the noodles are made in-house. On a Sunday at 12:40 p.m., 20 teams were waiting, but the wait to get in was under 30 minutes, and guests can wait in a separate waiting room. The kimchi is very spicy, so it is heavy for those who cannot handle spicy food.