Refrigerator

A refrigerator comprising:

• a main body having at least one storage space defined therein;
• a door mounted rotatably to a front surface of the main body and configured to shield the storage space defined inside the main body;
• a shelf provided inside the main body and configured to store food;
• and
• a shelf system that movably supports the shelf,
• wherein the shelf system is configured to, during withdrawal of the shelf, enable the shelf to move forward and downward while the shelf being rotated downward by the shelf system,
• wherein the shelf system comprises:
• a frame that supports the shelf and is detachably attached to the main body, and
• multiple links disposed at one side of the shelf and configured to support the shelf, wherein the multiple links enable the shelf to move forward and backward relative to the frame, to move upward and downward relative to the frame, or to rotate relative to the frame,
• wherein the frame defines a plurality of guide holes that define a trajectory of movement of at least one link of the multiple links, the plurality of guide holes comprising a first guide hole, a second guide hole, and a shaft guide hole, and
• wherein a front-to-rear length of each of the first guide hole and the shaft guide hole is shorter than a front-to-rear length of the second guide hole.