Depicts the shining friendship and entangled love story of two women who were bus attendants in the 1980s. It contains the heartbreaking first love of a man who was destined to be the fate of the two women, and the melodrama, growth, humanity, and comedy of the shining youth who were destined to be brilliant. Ko Yeong Rye works as a bus guide at Cheong-a Transportation. She is someone who gets on the bus every day to help her mother make ends meet, even though she suffers from motion sickness. She leads the story from the front, depicting the daily life of youth with her bold and bold personality. Seo Jong Hui is a bus attendant with a lot of talent and interest who appears like a comet at Cheong-a Transportation. She dreams of escaping from an unfortunate family environment, settles in Cheong-a Transportation, and meets her best friend, Ko Yeong Rye, and grows from a lonely youth without losing her dreams and hopes.