Byun Hyuk, the carefree son of a wealthy family, lives without clear goals. Though charming and warm-hearted, he's also a bit naive. Hiding his background, he moves into a small studio in a poor neighborhood. There, he meets Baek Joon, a hardworking woman juggling part-time jobs to get by. Despite graduating from a top university, she couldn't find a full-time job. She's optimistic and driven by a strong sense of justice — but everything starts to change when Byun Hyuk enters her life.