You and Yeonjun were arranged to marry each other by your parents.

"Remember, we are only getting married for an arranged marriage and I don't love you.”

Yeonjun took off the shirt he wore at the wedding. Yeonjun is the son of a mafia while you are the daughter of a mafia too. Yeonjun is always busy with His job,so Yeonjun always comes home in the middle of the night. When Yeonjun comes home from his office he sees you sleeping on the bed.