Kwon Yul, a South Korea's youngest Prime Minister who is 100% capable in his work but 0% capable in parenting, he struggles in raising his 3 kids alone. Nam Da Jung, a young reporter who full of enthusiasm but always ends up missing big scoops. She accidentally gets into a scandal with Prime Minister and to keep his position, they get married. She enters his house and becomes a young affectionate mother to his kids like a Christmas present and that's when the love story begins.