Refrigerator

A refrigerator comprising:

• a case that defines a storage chamber;
• and
• a first door and a second door that are configured to cover the storage chamber and are arranged side-by-side, the second door comprising:
• a main door connected to the case by a first hinge and including a first frame that defines a hole and,
• a sub door configured to cover the hole and connected to the main door by a second hinge;
• wherein the first frame includes a first recess that is recessed downward from a top surface of the first frame, the first hinge being provided on the first recess, wherein the sub door comprises:
• a second frame that defines an opening and a second recess that is recessed toward a front surface of the sub door;
• and
• a panel assembly configured to cover the opening and including a front panel provided in front of the first and second recesses to cover the first and second recesses.

A refrigerator comprising:

• a case that defines a storage chamber;
• and
• a first door and a second door that cover the storage chamber, the second door comprising:
• a frame that defines a hole and,
• a panel assembly configured to cover the hole;
• wherein the frame includes a recess that is recessed downward from a top surface of the frame, and having a hinge provided in the recess, and wherein the panel assembly is configured to cover the opening and includes a front panel provided in front of the frame to cover the recess.