It has something to do with Korean food. Koreans usually like to eat pickles and the like, and there is no big fish and big meat, because in addition to aquatic products, South Korea is short of materials, where a pack of instant noodles costs RMB 20 yuan! So they prefer rice noodles and vegetables, and prefer to mix them. Therefore, it is normal for them to like to eat dregs. I have seen several Koreans go to the restaurant in front of my house to eat Zhajiang noodles. Besides, the slag river noodles are delicious. I like it too. Who doesn't like good food? Ha ha!