One Day Off - Season 1 Episode 4 The Way Back
Overview: Ha-kyung dials up customer service when her parents lose their Internet connection. After an exhausting marathon on the phone, she decides to clear her head in Sokcho. But things take an unexpected turn at the bus terminal when she gets embroiled in a heated argument. Past experiences clash with forward-thinking opinions, but when loved ones enter the picture, all that tension melts away miraculously.