Chaerin and Jiyong, two people coming from what they so called different world. But fate brings them together, along with their little sunshine, four years old beautiful girl named Haru

Their situation that time made Jiyong couldn’t marry Chaerin. But he promised her, he will always be with her, and never abandon her and their daughter. And he keeps his promise. Even though he couldn’t be with them every day, he tries his best to play his role as a father, and a boyfriend

But, what will happen when the situation becomes more complicated? Almost five years passed and Jiyong still couldn’t marry her and take full responsibility of the two. More over now, when the son of Korea’s ex-prime minister becomes one of the most prominent politician in South Korea.

Kwon Jiyong. Young, smart, coming from such a promising family. People say he is the next prime minister, following his father and maybe the youngest one who could reach that position. His stuffed schedule makes him lose more and more time with his woman and daughter.

To make it worse, his family wants him to marry his childhood friend from Japan, the pretty socialite, daughter of Japan’s royal family and ministry of foreign affairs, Kiko Mizuhara, for political reason

Haru misses her father, while Chaerin feels it’s getting hard to stay with him. should Chaerin leave Jiyong and starts a new life with Haru? Will Jiyong be able to overcome his problem and pick the woman he loves back to her real place along with their daughter?