Suh Jin Young is an aviation maintenance technician. Her fiance Jae Hoon passed away in a horrible traffic accident. Kim Chae Joon dreams of becoming an aviation maintenance technician but he encounters prejudice because he is an ex-convict. He killed some one with his car. Suh Jin Young gives him a chance to work under her and they fall in love. However that love is severely tested when they both discover that the Chae Joon's victim was Suh Jin Young's fiance Jae Hoon.

The story is about a not-so-bright older girl of 33 years old with a heart of a 24-year-old called Go Byeong Hee, who works as a reporter in a third-rate magazine company and dreams with a "platonic love and relationship" with her friend's brother who is nine years younger than her. What she dreams of, is working for a company that she can be proud of and finding a man who can provide warm support when she needs it. In addition, she wants to go on a world tour in a camping car with her new love. Suddenly, she gets into an accident with her friend Seung Hye's brother, Park Chul Su. He is a 24-year-old male working as a mechanic at a car repair shop. Although Chul Su does not have much in life, he is filled with ambition and enjoys life by doing the things he loves, working as a mechanic and traveling. How many people actually find the love they dream of? Until they realize that true love is just around the corner, this couple continues to pursue this unique romantic relationship of "dating a friend's brother" and "dating my sister's friend".