When Cheongah Bus refuses to compensate for a serious accident that leaves a conductor severely injured, the conductors organise a strike. Yeong-rye seeks advice from Hyeon and Yeong-sik about the strike. Meanwhile, Jong-hee learns of Yeong-rye's feelings for Jae-pil and makes up her mind. When Yeong-rye finds herself in danger, Jong-hee steps in to help, putting herself at risk.

Yeong-rye and Jae-pil's feelings for each other continue to deepen, but they both try to stay within the boundaries of friendship. Jae-pil is consumed by his hectic life at the hospital, while Yeong-rye balances her work at the salon with caring for her family. When Jeong Hyeon, who left seven years ago, suddenly returns, Jae-pil finds himself overcome with jealousy.

Jong-hee and Yeong-rye unexpectedly reunite at Juri Beauty Salon. Jong-hee tells her story of how she was adopted by a chairwoman, and with this encounter, she finally catches up with everyone she used to know back when she was a bus conductor. However, things become complicated as she sees how close Yeong-rye and Jae-pil have gotten during her absence.