A Boy's Sister

Yoon Hee carries the heavy burden of having lost her younger brother in a traumatic incident as a young child. Her younger brother died after saving her from a rising river caused by heavy rains. Because of that incident, Yoon Hee can't go out during the rainy season and she has been fired from numerous jobs due to this. One day, Yoon Hee's wallet is stolen by teenager Jin Ho in their neighborhood. In the wallet, there's only a picture of her younger brother. Yoon Hee begins a new job as a cafeteria worker at a high school. While working in the cafeteria, Yoon Hee meets Jin Ho, the teen who stole her wallet. They both realize that they carry similar emotional scars from past incidents. In order to save Jin Ho, Yoon Hee attempts to break free from her own trauma.