Lee YeJin. Two words that define her; young and successful. Ooh, it should be three. Young, successful and eccentric.

She work as Chief Executive Officer at one of top company in Korea. Don't get her wrong, that is not her father or her family company but she work hard to climb up to become the leader of the company. Begin just the manager now look where she is. 

For Lee YeJin there is no words such as loss or surrender in her life dictionary. For her, winning is everything. Especially winning against him.  

Dong Young Bae. Become the only child in his family gave him a lot of advantages. He inherited his father company, and his father other properties. He was label as Korean prince. Rich, successful, perfect body, and of course good looking. Many girls would just surrender just to be by his side.

But that doesn't make him a jerk or a playboy. He just stay humble and still kind towards others. He doesn't like to compete or anything. He like to play it easy and relax. And yet, he doesn't understand why she always want to compete.

Both of them came from different background.

Both of them have different personalities.

Both of them, just like oil and water, can't get together very well.

But.... both of them are normal human same with all of us. Both of them have heart and have feelings. 

 No matter what circumstances , both of them will 'fight', they will debate about anything.