Lee Gang-Doo aspired to play soccer but was tragically injured in the process. The accident killed his father and broke his leg. Lee Gang-Doo was in treatment for three years. He has nothing to do now, so he's just wasting his time. Lee Gang-Doo and Ha Moon-Soo then meet together. Ha Moon-Soo is an architectural modeler. Similarly, Ha Moon-Soo lost her younger sibling in an accident. She's felt guilty about surviving. She's led a serious life, but she's kept her emotions bottled inside. After meeting Lee Gang-Doo, Ha Moon-Soo begins to open up about the sentiments she's been hiding.