Stuntman Cha Dal-geon gets involved in a tragic airplane crash and ends up discovering a national corruption scandal in the process. Go Hae-ri, the oldest daughter of a deceased marine, decides to work for the National Intelligence Service as a secret ops agent in order to support her mom and younger siblings, although all she wanted to do is to become a civil servant.

Jenny Jang is poor and works at bathhouse in Gangnam, Seoul. She starts a new job as a housemaid for a conglomerate family. She becomes successful and then runs J Boutique. She also begins work as a lobbyist. Jenny Jang gets involved in an international city development project.

Story about an unexpected plane crash that causes a widespread panic in South Korea due to the disappearance of nine people, including some influential figures in the entertainment industry. Seo Joon O used to be a popular singer, but he isn't popular anymore. Now, he works as a reporter for a TV entertainment show. He and his stylist Ra Bong-Hee land on a deserted island.

The memory of their painful breakup still fresh in their minds, two former lovers reunite years later as a top actor and a documentary producer.

Yoon-hye likes Da-joo more than just as a friend but denies her feelings for the sake of their friendship. After some events following Da-joo being introduced to a boy, Yoon-hye is not able to hide her emotions anymore.