The Beginning of the Unfair Trade

Soo-pyo gets fired, and he doesn't know how to break the news to his family. Moon-jung gets in trouble as the designer who was supposed to submit his work goes AWOL. They find out he's at a marathon, so Moon-jung goes to look for him, and Hae-ra tags along. Hae-ra is torn about helping Moon-jung because of her secret task, but she decides to stick to her task in the end.