Shin Wonho wasn't just any CEO. He was known to be ultimately ruthless if an employee wasn't as serious with his work. And he was very, very serious. Now if you throw in an arranged marriage, wouldn't it be exciting? Not if he knew the girl from before already. And this girl wasn't ordinary. She was loud, cheerful,  and overly caring it made him want to puke. Why can't she just sit still too? Ah, fml.