Ex intelligence agent Ki-heon is tasked with safely transporting Seo Bok, the first ever human clone, who holds the secret of eternal life. Several forces try to take control of Seo Bok to serve their own agendas.

Hyeonjae was a war correspondent who quit due to his trauma of war. Thinking of the special communication he had with plants as a kid, he returns to his grandfather's arboretum. At that very place, he gains the courage to live on and decides to run a plant café in the city. To his customers who seek him out with their stories and plants, Hyeonjae provides a remedy for not only their plants but also their hearts.

As a politician, Joo Sang-Sook (Ra Mi-Ran) attempted to run for the fourth time as a member of the nationally assembly. After visiting her grandmother, Joo Sang-Sook was unable to tell a lie. Now, Joo Sang-Sook attempts to return to the political world.

During a summer vacation, Ok-ju and Dong-ju move into their grandpa's house. While Dong-ju adapts to his new home, Ok-ju feels awkward about this new environment. Once their soon-to-be-divorced aunt also moves in, and as Ok-ju spends time with her family, the house and her grandpa start to grow on her.