On her way to school inside the subway, Soo-young realizes she forgot to wear her school uniform tie. She goes to the man she met inside the elevator and asks to borrow his tie instead. Yun-woo, taken aback, hands it over. His heart starts pounding at this teenager's boldness. Meanwhile, Ha-kyung breaks up with KANG Sook only a few hours after they first meet. However, KANG Sook has already fallen in love with her. Despite her coldness towards him, he tries his hardest to impress her.