SBS has released a new BTS clip of the two leads having fun and fooling around the set of “While You Were Asleep.”

The new BTS clip features the two practicing their lines and screwing up a couple of times while trying to capture the perfect shot to some of the drama most memorable scenes.

The drama has recently broke its ratings record and achieved the two digit ratings mark and ruled the Wednesday-Thursday dramas ratings battle.

You can check out the cute clip down below.