Soft tofu stew includes red pepper chili flakes, which are used in many dishes in South Korea. If you ever come to South Korea, you will notice that many dishes have a red color because it is common to use red pepper or kimchi in foods. Kimchi is pickled cabbage that is red in color. Sometimes it's spicy but sometimes it's not. Although different places in South Korea have different types of dishes, the red color of stews is something you will see in any region.
