Seung-yeon refuses to share a room with Ha-kyung’s classmate, Mari, which puts her in a cold war with her uncle, Bom Ryong. As a result, she starts staying over at Ha-kyung’s place.
Meanwhile at the airport, Kyu-tae and Byeong-do witness an elderly couple, deeply moved by Seung-yeon’s attentive service, trying to give her a tip. The incident quickly becomes an internal issue at work. Even Jun-ho warns her about it, leaving Seung-yeon feeling discouraged.
On the other hand, after Woo-jin buys her a new phone, Ha-kyung insists on repaying the favor and gives him a keychain, saying she believes in settling her debts.