A refrigerator comprising: storage spaces (30, 40); a wall located behind of the storage spaces (30, 40); a case provided inside the storage spaces (30, 40), located on a front surface of the wall, and fixed to the wall; a thermoelectric element module, TEM, assembly located at a rear of the case, located on a rear surface of the wall corresponding to the front surface of the wall which the case is located, fixed to the wall and configured to supply cool air to the case, the TEM assembly includes a cold sink, a thermoelectric element, and a heat sink in order from a front side to a rear side; and a TEM accommodating part provided at the wall and configured to accommodate the TEM assembly; characterized in that: a sealant (61, 62, 63, 64) is interposed in a gap between a rear of the case and the wall; the thermoelectric element and the heat sink are disposed behind a rear surface of a space of the freezer compartment defined by the wall; and a front end of the cold sink is disposed in front of the rear surface of the space of the freezer compartment defined by the wall, wherein: an opening into which the TEM accommodating part is inserted is provided in the rear of the case; an inner circumferential surface of the opening of the case surrounds an outer circumferential surface of the TEM accommodating part; and the sealant interposed in the gap between the rear of the case and the wall includes a fourth sealant being interposed and pressed in a gap between the inner circumferential surface and the outer circumferential surface. storage spaces (30, 40); a wall located behind of the storage spaces (30, 40); a case provided inside the storage spaces (30, 40), located on a front surface of the wall, and fixed to the wall; a thermoelectric element module, TEM, assembly located at a rear of the case, located on a rear surface of the wall corresponding to the front surface of the wall which the case is located, fixed to the wall and configured to supply cool air to the case, the TEM assembly includes a cold sink, a thermoelectric element, and a heat sink in order from a front side to a rear side; and a TEM accommodating part provided at the wall and configured to accommodate the TEM assembly; characterized in that: a sealant (61, 62, 63, 64) is interposed in a gap between a rear of the case and the wall; the thermoelectric element and the heat sink are disposed behind a rear surface of a space of the freezer compartment defined by the wall; and a front end of the cold sink is disposed in front of the rear surface of the space of the freezer compartment defined by the wall, wherein: an opening into which the TEM accommodating part is inserted is provided in the rear of the case; an inner circumferential surface of the opening of the case surrounds an outer circumferential surface of the TEM accommodating part; and the sealant interposed in the gap between the rear of the case and the wall includes a fourth sealant being interposed and pressed in a gap between the inner circumferential surface and the outer circumferential surface. a sealant (61, 62, 63, 64) is interposed in a gap between a rear of the case and the wall; the thermoelectric element and the heat sink are disposed behind a rear surface of a space of the freezer compartment defined by the wall; and a front end of the cold sink is disposed in front of the rear surface of the space of the freezer compartment defined by the wall, wherein: an opening into which the TEM accommodating part is inserted is provided in the rear of the case; an inner circumferential surface of the opening of the case surrounds an outer circumferential surface of the TEM accommodating part; and the sealant interposed in the gap between the rear of the case and the wall includes a fourth sealant being interposed and pressed in a gap between the inner circumferential surface and the outer circumferential surface. an opening into which the TEM accommodating part is inserted is provided in the rear of the case; an inner circumferential surface of the opening of the case surrounds an outer circumferential surface of the TEM accommodating part; and the sealant interposed in the gap between the rear of the case and the wall includes a fourth sealant being interposed and pressed in a gap between the inner circumferential surface and the outer circumferential surface.