Ina Yun is left without a job or home after she gets fired and her house burns down. Her luck takes a turn when Hyeondu Seo, owner of the Moonlight Beauty Parlor, offers her a place to stay as well as a job -- on one condition! Hyeondu suffers from insomnia, and it seems Ina’s presence is the only thing that allows him to sleep through the night. If she agrees to help him sleep at night, she can stay. As Ina spends more time with with Hyeondu, her heart begins to skip a beat when she sees how thoughtful he is with each of his clients. Is Hyeondu only keeping Ina around to help him sleep, or do his feelings run deeper?