"Marry me." "What? We just met Ms.Lee and you-" "Marry me Dr.Kim" "It's-It's all my fault, she's gone because of me i-" "Calm down Ms.Lee" Kim Seokjin, a doctor working at Medicx Hospital, Seoul, Korea, encounters a strange business woman who asks him to marry her out of the blue... She is strong, independent, yet a little childish sometimes.... Will he be able to keep the contract?