Title: A Kind Goblin's Bird
There is a tale about a woman who can help grant wishes in people's sleep. All she has to do is sing as the person falls asleep, and in their dreams, they will see their wishes granted. She is an oracle and one that Sah Heonyoung seeks out to test her powers. When he sees her, they are inexplicably drawn to each other; Sah Heonyoung, in particular, is drawn to the oracle. However, his identity as the twin of the crown prince, a goblin, makes it impossible to want anything without fear of losing it.
The oracle in question has never had a name. She is forced to live out in the woods of the mountain, surviving on weeds and grass in between the few times she is called to perform her wish-granting ceremony. Over time, her body has accumulated many scars, her legs have weakened to the point that she can't stand for long, and her eyesight is poor at night. Her life is an endless struggle until she meets the goblin in the red mask. He whisks her away, gives her a name, and asks her to be his bride. In an instant, her life has changed, but the imperial family, his family, threatens to steal away her happiness forever.