These refrigerators are designed for consumers who value interior design. The flat 1 door design comes in 10 colors and materials to give users a variety of expression options. This front panel is replaceable, allowing the refrigerator to adapt to and harmonize with any interior changes. Each compartment can be controlled at the optimum temperature for refrigeration, freezing, and kimchi storage, so users can use two or three units in a combination of their own choice.